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authorMarkus Elfring <elfring@users.sourceforge.net>2017-08-12 16:18:56 +0300
committerTakashi Iwai <tiwai@suse.de>2017-08-13 00:27:21 +0300
commit2cb98d010fdc7a545856baf32bce096fa431d250 (patch)
tree4304386376aaf7026083a0d10acad1a108d80df2 /sound/pci/rme96.c
parentd72a8010ae60551ad14f1385e637be101cf741b5 (diff)
downloadlinux-2cb98d010fdc7a545856baf32bce096fa431d250.tar.xz
ALSA: rme96: Adjust five checks for null pointers
The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written … Thus fix the affected source code places. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/rme96.c')
-rw-r--r--sound/pci/rme96.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index 0cdfd53b7796..b488d74c3b99 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -1199,7 +1199,7 @@ snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
snd_pcm_set_sync(substream);
spin_lock_irq(&rme96->lock);
- if (rme96->playback_substream != NULL) {
+ if (rme96->playback_substream) {
spin_unlock_irq(&rme96->lock);
return -EBUSY;
}
@@ -1248,7 +1248,7 @@ snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
}
spin_lock_irq(&rme96->lock);
- if (rme96->capture_substream != NULL) {
+ if (rme96->capture_substream) {
spin_unlock_irq(&rme96->lock);
return -EBUSY;
}
@@ -1268,7 +1268,7 @@ snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
snd_pcm_set_sync(substream);
spin_lock_irq(&rme96->lock);
- if (rme96->playback_substream != NULL) {
+ if (rme96->playback_substream) {
spin_unlock_irq(&rme96->lock);
return -EBUSY;
}
@@ -1315,7 +1315,7 @@ snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
}
spin_lock_irq(&rme96->lock);
- if (rme96->capture_substream != NULL) {
+ if (rme96->capture_substream) {
spin_unlock_irq(&rme96->lock);
return -EBUSY;
}
@@ -1578,9 +1578,9 @@ snd_rme96_free(void *private_data)
{
struct rme96 *rme96 = (struct rme96 *)private_data;
- if (rme96 == NULL) {
+ if (!rme96)
return;
- }
+
if (rme96->irq >= 0) {
snd_rme96_trigger(rme96, RME96_STOP_BOTH);
rme96->areg &= ~RME96_AR_DAC_EN;