diff options
| -rw-r--r-- | drivers/of/device.c | 23 | ||||
| -rw-r--r-- | include/linux/of_device.h | 6 |
2 files changed, 29 insertions, 0 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c index fd5cfad7c403..8a22a253a830 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -226,6 +226,29 @@ ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len) return tsize; } +int of_device_request_module(struct device *dev) +{ + char *str; + ssize_t size; + int ret; + + size = of_device_get_modalias(dev, NULL, 0); + if (size < 0) + return size; + + str = kmalloc(size + 1, GFP_KERNEL); + if (!str) + return -ENOMEM; + + of_device_get_modalias(dev, str, size); + str[size] = '\0'; + ret = request_module(str); + kfree(str); + + return ret; +} +EXPORT_SYMBOL_GPL(of_device_request_module); + /** * of_device_uevent - Display OF related uevent information */ diff --git a/include/linux/of_device.h b/include/linux/of_device.h index cc7dd687a89d..e9afbcc8de12 100644 --- a/include/linux/of_device.h +++ b/include/linux/of_device.h @@ -37,6 +37,7 @@ extern const void *of_device_get_match_data(const struct device *dev); extern ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len); +extern int of_device_request_module(struct device *dev); extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env); extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env); @@ -78,6 +79,11 @@ static inline int of_device_get_modalias(struct device *dev, return -ENODEV; } +static inline int of_device_request_module(struct device *dev) +{ + return -ENODEV; +} + static inline int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) { |