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Diffstat (limited to 'drivers/scsi/scsi_debug.c')
-rw-r--r--drivers/scsi/scsi_debug.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index d323523f5f9d..44cb054d5e66 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1025,7 +1025,7 @@ static int fill_from_dev_buffer(struct scsi_cmnd *scp, unsigned char *arr,
static int p_fill_from_dev_buffer(struct scsi_cmnd *scp, const void *arr,
int arr_len, unsigned int off_dst)
{
- int act_len, n;
+ unsigned int act_len, n;
struct scsi_data_buffer *sdb = &scp->sdb;
off_t skip = off_dst;
@@ -1039,7 +1039,7 @@ static int p_fill_from_dev_buffer(struct scsi_cmnd *scp, const void *arr,
pr_debug("%s: off_dst=%u, scsi_bufflen=%u, act_len=%u, resid=%d\n",
__func__, off_dst, scsi_bufflen(scp), act_len,
scsi_get_resid(scp));
- n = (int)scsi_bufflen(scp) - ((int)off_dst + act_len);
+ n = scsi_bufflen(scp) - (off_dst + act_len);
scsi_set_resid(scp, min(scsi_get_resid(scp), n));
return 0;
}
@@ -5263,6 +5263,11 @@ static int __init scsi_debug_init(void)
return -EINVAL;
}
+ if (sdebug_num_tgts < 0) {
+ pr_err("num_tgts must be >= 0\n");
+ return -EINVAL;
+ }
+
if (sdebug_guard > 1) {
pr_err("guard must be 0 or 1\n");
return -EINVAL;