diff options
| -rw-r--r-- | drivers/gpio/gpiolib.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 00890f38f95f..c7ee224bcb86 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -301,6 +301,9 @@ static struct gpio_desc *gpio_name_to_desc(const char * const name) struct gpio_device *gdev; unsigned long flags; + if (!name) + return NULL; + spin_lock_irqsave(&gpio_lock, flags); list_for_each_entry(gdev, &gpio_devices, list) { @@ -309,7 +312,7 @@ static struct gpio_desc *gpio_name_to_desc(const char * const name) for (i = 0; i != gdev->ngpio; ++i) { struct gpio_desc *desc = &gdev->descs[i]; - if (!desc->name || !name) + if (!desc->name) continue; if (!strcmp(desc->name, name)) { |