| Message ID | 1501485243-11977-1-git-send-email-jananis37@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Am 31.07.2017 um 09:14 schrieb janani-sankarababu: > This patch is to replace the use of BUG_ON macro with WARN_ON > inorder to prevent the crashing of the kernel. Unfortunately it isn't always that simple. checkpatch isn't smart. It's preferred to handle error cases instead of flooding the kernel log. > > Signed-off-by: Janani Sankara Babu <jananis37@gmail.com> > --- > drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c > index f484bb0..30bc246 100644 > --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c > +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c > @@ -91,7 +91,7 @@ static int snd_bcm2835_ctl_get(struct snd_kcontrol *kcontrol, > if (mutex_lock_interruptible(&chip->audio_mutex)) > return -EINTR; > > - BUG_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); > + WARN_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); The complete logic seems strange to me and the statement before didn't even check for chip. Regards Stefan > > if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) > ucontrol->value.integer.value[0] = chip2alsa(chip->volume);
On Mon, Jul 31, 2017 at 12:44:03PM +0530, janani-sankarababu wrote: > This patch is to replace the use of BUG_ON macro with WARN_ON > inorder to prevent the crashing of the kernel. > > Signed-off-by: Janani Sankara Babu <jananis37@gmail.com> > --- > drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c > index f484bb0..30bc246 100644 > --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c > +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c > @@ -91,7 +91,7 @@ static int snd_bcm2835_ctl_get(struct snd_kcontrol *kcontrol, > if (mutex_lock_interruptible(&chip->audio_mutex)) ^^^^^^ We dereference chip here. > return -EINTR; > > - BUG_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); > + WARN_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); ^^^^^ Too late. regards, dan carpenter
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c index f484bb0..30bc246 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c @@ -91,7 +91,7 @@ static int snd_bcm2835_ctl_get(struct snd_kcontrol *kcontrol, if (mutex_lock_interruptible(&chip->audio_mutex)) return -EINTR; - BUG_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); + WARN_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) ucontrol->value.integer.value[0] = chip2alsa(chip->volume);
This patch is to replace the use of BUG_ON macro with WARN_ON inorder to prevent the crashing of the kernel. Signed-off-by: Janani Sankara Babu <jananis37@gmail.com> --- drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)