diff options
35 files changed, 216 insertions, 190 deletions
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c index c397b3ddba9b..bed29cb9e6d9 100644 --- a/drivers/block/paride/pg.c +++ b/drivers/block/paride/pg.c @@ -162,7 +162,7 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_SLV, D_DLY}; #include <linux/pg.h> #include <linux/device.h> #include <linux/sched.h> /* current, TASK_* */ -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/jiffies.h> #include <asm/uaccess.h> @@ -193,6 +193,7 @@ module_param_array(drive3, int, NULL, 0); #define ATAPI_IDENTIFY 0x12 +static DEFINE_MUTEX(pg_mutex); static int pg_open(struct inode *inode, struct file *file); static int pg_release(struct inode *inode, struct file *file); static ssize_t pg_read(struct file *filp, char __user *buf, @@ -518,7 +519,7 @@ static int pg_open(struct inode *inode, struct file *file) struct pg *dev = &devices[unit]; int ret = 0; - lock_kernel(); + mutex_lock(&pg_mutex); if ((unit >= PG_UNITS) || (!dev->present)) { ret = -ENODEV; goto out; @@ -547,7 +548,7 @@ static int pg_open(struct inode *inode, struct file *file) file->private_data = dev; out: - unlock_kernel(); + mutex_unlock(&pg_mutex); return ret; } diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c index bc5825fdeaab..e4dda282e0a6 100644 --- a/drivers/block/paride/pt.c +++ b/drivers/block/paride/pt.c @@ -146,7 +146,7 @@ static int (*drives[4])[6] = {&drive0, &drive1, &drive2, &drive3}; #include <linux/mtio.h> #include <linux/device.h> #include <linux/sched.h> /* current, TASK_*, schedule_timeout() */ -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <asm/uaccess.h> @@ -189,6 +189,7 @@ module_param_array(drive3, int, NULL, 0); #define ATAPI_MODE_SENSE 0x1a #define ATAPI_LOG_SENSE 0x4d +static DEFINE_MUTEX(pt_mutex); static int pt_open(struct inode *inode, struct file *file); static long pt_ioctl(struct file *file, unsigned int cmd, unsigned long arg); static int pt_release(struct inode *inode, struct file *file); @@ -650,9 +651,9 @@ static int pt_open(struct inode *inode, struct file *file) struct pt_unit *tape = pt + unit; int err; - lock_kernel(); + mutex_lock(&pt_mutex); if (unit >= PT_UNITS || (!tape->present)) { - unlock_kernel(); + mutex_unlock(&pt_mutex); return -ENODEV; } @@ -681,12 +682,12 @@ static int pt_open(struct inode *inode, struct file *file) } file->private_data = tape; - unlock_kernel(); + mutex_unlock(&pt_mutex); return 0; out: atomic_inc(&tape->available); - unlock_kernel(); + mutex_unlock(&pt_mutex); return err; } @@ -704,15 +705,15 @@ static long pt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) switch (mtop.mt_op) { case MTREW: - lock_kernel(); + mutex_lock(&pt_mutex); pt_rewind(tape); - unlock_kernel(); + mutex_unlock(&pt_mutex); return 0; case MTWEOF: - lock_kernel(); + mutex_lock(&pt_mutex); pt_write_fm(tape); - unlock_kernel(); + mutex_unlock(&pt_mutex); return 0; default: diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c index 033e1505fca9..6a420baea268 100644 --- a/drivers/char/apm-emulation.c +++ b/drivers/char/apm-emulation.c @@ -13,7 +13,7 @@ #include <linux/module.h> #include <linux/poll.h> #include <linux/slab.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/miscdevice.h> @@ -126,6 +126,7 @@ struct apm_user { /* * Local variables */ +static DEFINE_MUTEX(apm_mutex); static atomic_t suspend_acks_pending = ATOMIC_INIT(0); static atomic_t userspace_notification_inhibit = ATOMIC_INIT(0); static int apm_disabled; @@ -274,7 +275,7 @@ apm_ioctl(struct file *filp, u_int cmd, u_long arg) if (!as->suser || !as->writer) return -EPERM; - lock_kernel(); + mutex_lock(&apm_mutex); switch (cmd) { case APM_IOC_SUSPEND: mutex_lock(&state_lock); @@ -335,7 +336,7 @@ apm_ioctl(struct file *filp, u_int cmd, u_long arg) mutex_unlock(&state_lock); break; } - unlock_kernel(); + mutex_unlock(&apm_mutex); return err; } @@ -370,7 +371,7 @@ static int apm_open(struct inode * inode, struct file * filp) { struct apm_user *as; - lock_kernel(); + mutex_lock(&apm_mutex); as = kzalloc(sizeof(*as), GFP_KERNEL); if (as) { /* @@ -390,7 +391,7 @@ static int apm_open(struct inode * inode, struct file * filp) filp->private_data = as; } - unlock_kernel(); + mutex_unlock(&apm_mutex); return as ? 0 : -ENOMEM; } diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c index f4ae0e0fb631..e7ba774beda6 100644 --- a/drivers/char/applicom.c +++ b/drivers/char/applicom.c @@ -26,7 +26,7 @@ #include <linux/sched.h> #include <linux/slab.h> #include <linux/errno.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/miscdevice.h> #include <linux/pci.h> #include <linux/wait.h> @@ -60,6 +60,7 @@ #define PCI_DEVICE_ID_APPLICOM_PCI2000PFB 0x0003 #endif +static DEFINE_MUTEX(ac_mutex); static char *applicom_pci_devnames[] = { "PCI board", "PCI2000IBS / PCI2000CAN", @@ -707,7 +708,7 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (IS_ERR(adgl)) return PTR_ERR(adgl); - lock_kernel(); + mutex_lock(&ac_mutex); IndexCard = adgl->num_card-1; if(cmd != 6 && ((IndexCard >= MAX_BOARD) || !apbs[IndexCard].RamIO)) { @@ -717,7 +718,7 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg) warncount--; } kfree(adgl); - unlock_kernel(); + mutex_unlock(&ac_mutex); return -EINVAL; } @@ -835,7 +836,7 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } Dummy = readb(apbs[IndexCard].RamIO + VERS); kfree(adgl); - unlock_kernel(); + mutex_unlock(&ac_mutex); return 0; } diff --git a/drivers/char/ds1302.c b/drivers/char/ds1302.c index 170693c93c73..e3d72aa3cbd2 100644 --- a/drivers/char/ds1302.c +++ b/drivers/char/ds1302.c @@ -20,7 +20,7 @@ #include <linux/miscdevice.h> #include <linux/delay.h> #include <linux/bcd.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/uaccess.h> #include <linux/io.h> @@ -32,6 +32,7 @@ #define RTC_MAJOR_NR 121 /* local major, change later */ +static DEFINE_MUTEX(rtc_mutex); static const char ds1302_name[] = "ds1302"; /* Send 8 bits. */ @@ -164,9 +165,9 @@ static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct rtc_time rtc_tm; memset(&rtc_tm, 0, sizeof (struct rtc_time)); - lock_kernel(); + mutex_lock(&rtc_mutex); get_rtc_time(&rtc_tm); - unlock_kernel(); + mutex_unlock(&rtc_mutex); if (copy_to_user((struct rtc_time*)arg, &rtc_tm, sizeof(struct rtc_time))) return -EFAULT; return 0; @@ -218,7 +219,7 @@ static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) mon = bin2bcd(mon); yrs = bin2bcd(yrs); - lock_kernel(); + mutex_lock(&rtc_mutex); local_irq_save(flags); CMOS_WRITE(yrs, RTC_YEAR); CMOS_WRITE(mon, RTC_MONTH); @@ -227,7 +228,7 @@ static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) CMOS_WRITE(min, RTC_MINUTES); CMOS_WRITE(sec, RTC_SECONDS); local_irq_restore(flags); - unlock_kernel(); + mutex_unlock(&rtc_mutex); /* Notice that at this point, the RTC is updated but * the kernel is still running with the old time. @@ -247,10 +248,10 @@ static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if(copy_from_user(&tcs_val, (int*)arg, sizeof(int))) return -EFAULT; - lock_kernel(); + mutex_lock(&rtc_mutex); tcs_val = RTC_TCR_PATTERN | (tcs_val & 0x0F); ds1302_writereg(RTC_TRICKLECHARGER, tcs_val); - unlock_kernel(); + mutex_unlock(&rtc_mutex); return 0; } default: diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c index dbee8688f75c..9aa1fd059aea 100644 --- a/drivers/char/ds1620.c +++ b/drivers/char/ds1620.c @@ -8,7 +8,7 @@ #include <linux/proc_fs.h> #include <linux/capability.h> #include <linux/init.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -34,6 +34,7 @@ #define CFG_CPU 2 #define CFG_1SHOT 1 +static DEFINE_MUTEX(ds1620_mutex); static const char *fan_state[] = { "off", "on", "on (hardwired)" }; /* @@ -210,7 +211,6 @@ static void ds1620_read_state(struct therm *therm) static int ds1620_open(struct inode *inode, struct file *file) { - cycle_kernel_lock(); return nonseekable_open(inode, file); } @@ -321,9 +321,9 @@ ds1620_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int ret; - lock_kernel(); + mutex_lock(&ds1620_mutex); ret = ds1620_ioctl(file, cmd, arg); - unlock_kernel(); + mutex_unlock(&ds1620_mutex); return ret; } diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c index 8a1b28a10ef0..b3c756227e39 100644 --- a/drivers/char/dsp56k.c +++ b/drivers/char/dsp56k.c @@ -32,7 +32,7 @@ #include <linux/mm.h> #include <linux/init.h> #include <linux/device.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/firmware.h> #include <linux/platform_device.h> #include <linux/uaccess.h> /* For put_user and get_user */ @@ -94,6 +94,7 @@ } \ } +static DEFINE_MUTEX(dsp56k_mutex); static struct dsp56k_device { unsigned long in_use; long maxio, timeout; @@ -330,9 +331,9 @@ static long dsp56k_ioctl(struct file *file, unsigned int cmd, if (len > DSP56K_MAX_BINARY_LENGTH) { return -EINVAL; } - lock_kernel(); + mutex_lock(&dsp56k_mutex); r = dsp56k_upload(bin, len); - unlock_kernel(); + mutex_unlock(&dsp56k_mutex); if (r < 0) { return r; } @@ -342,16 +343,16 @@ static long dsp56k_ioctl(struct file *file, unsigned int cmd, case DSP56K_SET_TX_WSIZE: if (arg > 4 || arg < 1) return -EINVAL; - lock_kernel(); + mutex_lock(&dsp56k_mutex); dsp56k.tx_wsize = (int) arg; - unlock_kernel(); + mutex_unlock(&dsp56k_mutex); break; case DSP56K_SET_RX_WSIZE: if (arg > 4 || arg < 1) return -EINVAL; - lock_kernel(); + mutex_lock(&dsp56k_mutex); dsp56k.rx_wsize = (int) arg; - unlock_kernel(); + mutex_unlock(&dsp56k_mutex); break; case DSP56K_HOST_FLAGS: { @@ -363,7 +364,7 @@ static long dsp56k_ioctl(struct file *file, unsigned int cmd, if(get_user(out, &hf->out) < 0) return -EFAULT; - lock_kernel(); + mutex_lock(&dsp56k_mutex); if ((dir & 0x1) && (out & 0x1)) dsp56k_host_interface.icr |= DSP56K_ICR_HF0; else if (dir & 0x1) @@ -378,16 +379,16 @@ static long dsp56k_ioctl(struct file *file, unsigned int cmd, if (dsp56k_host_interface.icr & DSP56K_ICR_HF1) status |= 0x2; if (dsp56k_host_interface.isr & DSP56K_ISR_HF2) status |= 0x4; if (dsp56k_host_interface.isr & DSP56K_ISR_HF3) status |= 0x8; - unlock_kernel(); + mutex_unlock(&dsp56k_mutex); return put_user(status, &hf->status); } case DSP56K_HOST_CMD: if (arg > 31 || arg < 0) return -EINVAL; - lock_kernel(); + mutex_lock(&dsp56k_mutex); dsp56k_host_interface.cvr = (u_char)((arg & DSP56K_CVR_HV_MASK) | DSP56K_CVR_HC); - unlock_kernel(); + mutex_unlock(&dsp56k_mutex); break; default: return -EINVAL; @@ -427,7 +428,7 @@ static int dsp56k_open(struct inode *inode, struct file *file) int dev = iminor(inode) & 0x0f; int ret = 0; - lock_kernel(); + mutex_lock(&dsp56k_mutex); switch(dev) { case DSP56K_DEV_56001: @@ -454,7 +455,7 @@ static int dsp56k_open(struct inode *inode, struct file *file) ret = -ENODEV; } out: - unlock_kernel(); + mutex_unlock(&dsp56k_mutex); return ret; } diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c index e3859d4eaead..8dd040a945d4 100644 --- a/drivers/char/dtlk.c +++ b/drivers/char/dtlk.c @@ -57,7 +57,7 @@ #include <linux/ioport.h> /* for request_region */ #include <linux/delay.h> /* for loops_per_jiffy */ #include <linux/sched.h> -#include <linux/smp_lock.h> /* cycle_kernel_lock() */ +#include <linux/mutex.h> #include <asm/io.h> /* for inb_p, outb_p, inb, outb, etc. */ #include <asm/uaccess.h> /* for get_user, etc. */ #include <linux/wait.h> /* for wait_queue */ @@ -73,6 +73,7 @@ #define TRACE_RET ((void) 0) #endif /* TRACING */ +static DEFINE_MUTEX(dtlk_mutex); static void dtlk_timer_tick(unsigned long data); static int dtlk_major; @@ -275,9 +276,9 @@ static long dtlk_ioctl(struct file *file, switch (cmd) { case DTLK_INTERROGATE: - lock_kernel(); + mutex_lock(&dtlk_mutex); sp = dtlk_interrogate(); - unlock_kernel(); + mutex_unlock(&dtlk_mutex); if (copy_to_user(argp, sp, sizeof(struct dtlk_settings))) return -EINVAL; return 0; @@ -296,7 +297,6 @@ static int dtlk_open(struct inode *inode, struct file *file) { TRACE_TEXT("(dtlk_open"); - cycle_kernel_lock(); nonseekable_open(inode, file); switch (iminor(inode)) { case DTLK_MINOR: diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c index 82b5a88a82d7..0e941b57482e 100644 --- a/drivers/char/generic_nvram.c +++ b/drivers/char/generic_nvram.c @@ -19,7 +19,7 @@ #include <linux/miscdevice.h> #include <linux/fcntl.h> #include <linux/init.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <asm/nvram.h> #ifdef CONFIG_PPC_PMAC @@ -28,6 +28,7 @@ #define NVRAM_SIZE 8192 +static DEFINE_MUTEX(nvram_mutex); static ssize_t nvram_len; static loff_t nvram_llseek(struct file *file, loff_t offset, int origin) @@ -120,9 +121,9 @@ static long nvram_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned l { int ret; - lock_kernel(); + mutex_lock(&nvram_mutex); ret = nvram_ioctl(file, cmd, arg); - unlock_kernel(); + mutex_unlock(&nvram_mutex); return ret; } diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c index b6c2cc167c11..2aa69f97360d 100644 --- a/drivers/char/genrtc.c +++ b/drivers/char/genrtc.c @@ -52,7 +52,7 @@ #include <linux/init.h> #include <linux/poll.h> #include <linux/proc_fs.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/workqueue.h> #include <asm/uaccess.h> @@ -66,6 +66,7 @@ * ioctls. */ +static DEFINE_MUTEX(gen_rtc_mutex); static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait); /* @@ -337,9 +338,9 @@ static long gen_rtc_unlocked_ioctl(struct file *file, unsigned int cmd, { int ret; - lock_kernel(); + mutex_lock(&gen_rtc_mutex); ret = gen_rtc_ioctl(file, cmd, arg); - unlock_kernel(); + mutex_unlock(&gen_rtc_mutex); return ret; } @@ -352,16 +353,16 @@ static long gen_rtc_unlocked_ioctl(struct file *file, unsigned int cmd, static int gen_rtc_open(struct inode *inode, struct file *file) { - lock_kernel(); + mutex_lock(&gen_rtc_mutex); if (gen_rtc_status & RTC_IS_OPEN) { - unlock_kernel(); + mutex_unlock(&gen_rtc_mutex); return -EBUSY; } gen_rtc_status |= RTC_IS_OPEN; gen_rtc_irq_data = 0; irq_active = 0; - unlock_kernel(); + mutex_unlock(&gen_rtc_mutex); return 0; } diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c index 4cd8b227c11f..3bc0eef88717 100644 --- a/drivers/char/i8k.c +++ b/drivers/char/i8k.c @@ -23,7 +23,7 @@ #include <linux/seq_file.h> #include <linux/dmi.h> #include <linux/capability.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -56,6 +56,7 @@ #define I8K_TEMPERATURE_BUG 1 +static DEFINE_MUTEX(i8k_mutex); static char bios_version[4]; MODULE_AUTHOR("Massimo Dal Zotto (dz@debian.org)"); @@ -399,9 +400,9 @@ static long i8k_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) { long ret; - lock_kernel(); + mutex_lock(&i8k_mutex); ret = i8k_ioctl_unlocked(fp, cmd, arg); - unlock_kernel(); + mutex_unlock(&i8k_mutex); return ret; } diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index d4b71e8d0d23..dfbdf49d1e80 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -98,7 +98,7 @@ #include <linux/major.h> #include <linux/wait.h> #include <linux/device.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/firmware.h> #include <linux/platform_device.h> @@ -138,6 +138,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> +static DEFINE_MUTEX(ip2_mutex); static const struct file_operations ip2mem_proc_fops; static const struct file_operations ip2_proc_fops; @@ -2897,7 +2898,7 @@ ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg ) printk (KERN_DEBUG "IP2IPL: ioctl cmd %d, arg %ld\n", cmd, arg ); #endif - lock_kernel(); + mutex_lock(&ip2_mutex); switch ( iplminor ) { case 0: // IPL device @@ -2961,7 +2962,7 @@ ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg ) rc = -ENODEV; break; } - unlock_kernel(); + mutex_unlock(&ip2_mutex); return rc; } @@ -2982,7 +2983,6 @@ ip2_ipl_open( struct inode *pInode, struct file *pFile ) #ifdef IP2DEBUG_IPL printk (KERN_DEBUG "IP2IPL: open\n" ); #endif - cycle_kernel_lock(); return 0; } diff --git a/drivers/char/lp.c b/drivers/char/lp.c index 938a3a273886..598d278db058 100644 --- a/drivers/char/lp.c +++ b/drivers/char/lp.c @@ -126,7 +126,7 @@ #include <linux/device.h> #include <linux/wait.h> #include <linux/jiffies.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/compat.h> #include <linux/parport.h> @@ -140,6 +140,7 @@ /* if you have more than 8 printers, remember to increase LP_NO */ #define LP_NO 8 +static DEFINE_MUTEX(lp_mutex); static struct lp_struct lp_table[LP_NO]; static unsigned int lp_count = 0; @@ -493,7 +494,7 @@ static int lp_open(struct inode * inode, struct file * file) unsigned int minor = iminor(inode); int ret = 0; - lock_kernel(); + mutex_lock(&lp_mutex); if (minor >= LP_NO) { ret = -ENXIO; goto out; @@ -554,7 +555,7 @@ static int lp_open(struct inode * inode, struct file * file) lp_release_parport (&lp_table[minor]); lp_table[minor].current_mode = IEEE1284_MODE_COMPAT; out: - unlock_kernel(); + mutex_unlock(&lp_mutex); return ret; } @@ -680,7 +681,7 @@ static long lp_ioctl(struct file *file, unsigned int cmd, int ret; minor = iminor(file->f_path.dentry->d_inode); - lock_kernel(); + mutex_lock(&lp_mutex); switch (cmd) { case LPSETTIMEOUT: if (copy_from_user(&par_timeout, (void __user *)arg, @@ -694,7 +695,7 @@ static long lp_ioctl(struct file *file, unsigned int cmd, ret = lp_do_ioctl(minor, cmd, arg, (void __user *)arg); break; } - unlock_kernel(); + mutex_unlock(&lp_mutex); return ret; } @@ -709,7 +710,7 @@ static long lp_compat_ioctl(struct file *file, unsigned int cmd, int ret; minor = iminor(file->f_path.dentry->d_inode); - lock_kernel(); + mutex_lock(&lp_mutex); switch (cmd) { case LPSETTIMEOUT: tc = compat_ptr(arg); @@ -730,7 +731,7 @@ static long lp_compat_ioctl(struct file *file, unsigned int cmd, ret = lp_do_ioctl(minor, cmd, arg, compat_ptr(arg)); break; } - unlock_kernel(); + mutex_unlock(&lp_mutex); return ret; } diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c index 83bef4efe376..1aeaaba680d2 100644 --- a/drivers/char/mbcs.c +++ b/drivers/char/mbcs.c @@ -25,7 +25,6 @@ #include <linux/mm.h> #include <linux/uio.h> #include <linux/mutex.h> -#include <linux/smp_lock.h> #include <linux/slab.h> #include <asm/io.h> #include <asm/uaccess.h> @@ -42,6 +41,7 @@ #else #define DBG(fmt...) #endif +static DEFINE_MUTEX(mbcs_mutex); static int mbcs_major; static LIST_HEAD(soft_list); @@ -385,19 +385,19 @@ static int mbcs_open(struct inode *ip, struct file *fp) struct mbcs_soft *soft; int minor; - lock_kernel(); + mutex_lock(&mbcs_mutex); minor = iminor(ip); /* Nothing protects access to this list... */ list_for_each_entry(soft, &soft_list, list) { if (soft->nasid == minor) { fp->private_data = soft->cxdev; - unlock_kernel(); + mutex_unlock(&mbcs_mutex); return 0; } } - unlock_kernel(); + mutex_unlock(&mbcs_mutex); return -ENODEV; } diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c index ea7c99fa978f..fe4697844ec1 100644 --- a/drivers/char/mmtimer.c +++ b/drivers/char/mmtimer.c @@ -32,7 +32,7 @@ #include <linux/interrupt.h> #include <linux/time.h> #include <linux/math64.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/slab.h> #include <asm/uaccess.h> @@ -59,6 +59,7 @@ extern unsigned long sn_rtc_cycles_per_second; #define rtc_time() (*RTC_COUNTER_ADDR) +static DEFINE_MUTEX(mmtimer_mutex); static long mmtimer_ioctl(struct file *file, unsigned int cmd, unsigned long arg); static int mmtimer_mmap(struct file *file, struct vm_area_struct *vma); @@ -371,7 +372,7 @@ static long mmtimer_ioctl(struct file *file, unsigned int cmd, { int ret = 0; - lock_kernel(); + mutex_lock(&mmtimer_mutex); switch (cmd) { case MMTIMER_GETOFFSET: /* offset of the counter */ @@ -414,7 +415,7 @@ static long mmtimer_ioctl(struct file *file, unsigned int cmd, ret = -ENOTTY; break; } - unlock_kernel(); + mutex_unlock(&mmtimer_mutex); return ret; } diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c index a4ec50c95072..e5df26b56d59 100644 --- a/drivers/char/mwave/mwavedd.c +++ b/drivers/char/mwave/mwavedd.c @@ -56,7 +56,7 @@ #include <linux/serial.h> #include <linux/sched.h> #include <linux/spinlock.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/delay.h> #include <linux/serial_8250.h> #include "smapi.h" @@ -73,6 +73,7 @@ MODULE_LICENSE("GPL"); * checks are made against other devices (ie. superio) for conflicts. * We'll depend on users using the tpctl utility to do that for now */ +static DEFINE_MUTEX(mwave_mutex); int mwave_debug = 0; int mwave_3780i_irq = 0; int mwave_3780i_io = 0; @@ -101,7 +102,6 @@ static int mwave_open(struct inode *inode, struct file *file) PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_open, exit return retval %x\n", retval); - cycle_kernel_lock(); return retval; } @@ -136,9 +136,9 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd, PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RESET" " calling tp3780I_ResetDSP\n"); - lock_kernel(); + mutex_lock(&mwave_mutex); retval = tp3780I_ResetDSP(&pDrvData->rBDData); - unlock_kernel(); + mutex_unlock(&mwave_mutex); PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RESET" " retval %x from tp3780I_ResetDSP\n", @@ -149,9 +149,9 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd, PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RUN" " calling tp3780I_StartDSP\n"); - lock_kernel(); + mutex_lock(&mwave_mutex); retval = tp3780I_StartDSP(&pDrvData->rBDData); - unlock_kernel(); + mutex_unlock(&mwave_mutex); PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RUN" " retval %x from tp3780I_StartDSP\n", @@ -165,10 +165,10 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd, "mwavedd::mwave_ioctl," |