diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index bf083bc..4092b86 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -3623,6 +3623,8 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev, struct gpio_desc *desc = NULL; int status; enum gpio_lookup_flags lookupflags = 0; + /* Maybe we have a device name, maybe not */ + const char *devname = dev ? dev_name(dev) : "?"; dev_dbg(dev, "GPIO lookup for consumer %s\n", con_id); @@ -3651,8 +3653,11 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev, return desc; } - /* If a connection label was passed use that, else use the device name as label */ - status = gpiod_request(desc, con_id ? con_id : dev_name(dev)); + /* + * If a connection label was passed use that, else attempt to use + * the device name as label + */ + status = gpiod_request(desc, con_id ? con_id : devname); if (status < 0) return ERR_PTR(status); |
