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ALSA: sparc/dbri: Fix "possible condition with no effect" warning

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Fix a compiler warning about a condition with no effect:

sound/sparc/dbri.c:1843:1-3: WARNING: possible condition with no effect (if == else)

When DBRI_DEBUG is not defined, dprintk expands to an empty do-while
statement, making both branches of the if-else no-ops. Guard the entire
debug block with #ifdef DBRI_DEBUG to eliminate the warning and keep
the rval reference consistent with its declaration scope.

Signed-off-by: wangdicheng <wangdicheng@kylinos.cn>
Link: https://patch.msgid.link/20260717091542.721877-3-wangdich9700@163.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
wangdicheng 2026-07-17 17:15:41 +08:00 committed by Takashi Iwai
parent 4392569d95
commit 4797f26715
1 changed files with 2 additions and 0 deletions
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2
sound/sparc/dbri.c
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@ -1840,6 +1840,7 @@ static void dbri_process_one_interrupt(struct snd_dbri *dbri, int x)
int rval = D_INTR_GETRVAL(x);
#endif
#ifdef DBRI_DEBUG
if (channel == D_INTR_CMD) {
dprintk(D_CMD, "INTR: Command: %-5s Value:%d\n",
cmds[command], val);
@ -1847,6 +1848,7 @@ static void dbri_process_one_interrupt(struct snd_dbri *dbri, int x)
dprintk(D_INT, "INTR: Chan:%d Code:%d Val:%#x\n",
channel, code, rval);
}
#endif
switch (code) {
case D_INTR_CMDI: