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authorMarkus Elfring <elfring@users.sourceforge.net>2017-08-09 09:22:42 +0200
committerTakashi Iwai <tiwai@suse.de>2017-08-10 17:55:12 +0200
commitfbc020b48c85fc7e4ca42ceb095c76f294b00043 (patch)
tree2a44bd6b312bd43fd6c03c6685018407b84dd664 /sound/synth
parent949a0c23de89c02907970de7214c16b47ccf0482 (diff)
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ALSA: emux: Adjust four checks for null pointers
MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written !… Thus fix 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/synth')
-rw-r--r--sound/synth/emux/emux_seq.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/synth/emux/emux_seq.c b/sound/synth/emux/emux_seq.c
index 12acf18c5be4..fd6cbd439511 100644
--- a/sound/synth/emux/emux_seq.c
+++ b/sound/synth/emux/emux_seq.c
@@ -99,7 +99,7 @@ snd_emux_init_seq(struct snd_emux *emu, struct snd_card *card, int index)
sprintf(tmpname, "%s Port %d", emu->name, i);
p = snd_emux_create_port(emu, tmpname, MIDI_CHANNELS,
0, &pinfo);
- if (p == NULL) {
+ if (!p) {
snd_printk(KERN_ERR "can't create port\n");
return -ENOMEM;
}
@@ -151,7 +151,7 @@ snd_emux_create_port(struct snd_emux *emu, char *name,
}
p->chset.channels = kcalloc(max_channels, sizeof(*p->chset.channels),
GFP_KERNEL);
- if (p->chset.channels == NULL) {
+ if (!p->chset.channels) {
snd_printk(KERN_ERR "no memory\n");
kfree(p);
return NULL;
@@ -373,7 +373,7 @@ int snd_emux_init_virmidi(struct snd_emux *emu, struct snd_card *card)
return 0;
emu->vmidi = kcalloc(emu->midi_ports, sizeof(*emu->vmidi), GFP_KERNEL);
- if (emu->vmidi == NULL)
+ if (!emu->vmidi)
return -ENOMEM;
for (i = 0; i < emu->midi_ports; i++) {
@@ -405,7 +405,7 @@ int snd_emux_delete_virmidi(struct snd_emux *emu)
{
int i;
- if (emu->vmidi == NULL)
+ if (!emu->vmidi)
return 0;
for (i = 0; i < emu->midi_ports; i++) {