diff options
Diffstat (limited to 'drivers/staging/greybus/light.c')
| -rw-r--r-- | drivers/staging/greybus/light.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c index a5c2fe963866..00360f4a0485 100644 --- a/drivers/staging/greybus/light.c +++ b/drivers/staging/greybus/light.c @@ -142,6 +142,9 @@ static int __gb_lights_flash_brightness_set(struct gb_channel *channel) channel = get_channel_from_mode(channel->light, GB_CHANNEL_MODE_TORCH); + if (!channel) + return -EINVAL; + /* For not flash we need to convert brightness to intensity */ intensity = channel->intensity_uA.min + (channel->intensity_uA.step * channel->led->brightness); @@ -528,7 +531,10 @@ static int gb_lights_light_v4l2_register(struct gb_light *light) } channel_flash = get_channel_from_mode(light, GB_CHANNEL_MODE_FLASH); - WARN_ON(!channel_flash); + if (!channel_flash) { + dev_err(dev, "failed to get flash channel from mode\n"); + return -EINVAL; + } fled = &channel_flash->fled; |