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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2020-01-11 22:47:35 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-01-12 09:45:09 +0100 |
| commit | 8a71821f12a010d7100f9cc1f7b218aff0313c4a (patch) | |
| tree | 6a316e9404d56d4580072a318d001e50af82cc7a /sound/pci | |
| parent | ALSA: timer: fix nsec/sec initialization confusion (diff) | |
| download | linux-8a71821f12a010d7100f9cc1f7b218aff0313c4a.tar.xz linux-8a71821f12a010d7100f9cc1f7b218aff0313c4a.zip | |
ALSA: hda: patch_realtek: fix empty macro usage in if block
GCC reports the following warning with W=1
sound/pci/hda/patch_realtek.c: In function ‘alc269_suspend’:
sound/pci/hda/patch_realtek.c:3616:29: warning: suggest braces around
empty body in an ‘if’ statement [-Wempty-body]
3616 | alc5505_dsp_suspend(codec);
| ^
sound/pci/hda/patch_realtek.c: In function ‘alc269_resume’:
sound/pci/hda/patch_realtek.c:3651:28: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
3651 | alc5505_dsp_resume(codec);
| ^
This is a classic macro problem and can indeed lead to bad program
flows.
Fix by using the usual "do { } while (0)" pattern
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200111214736.3002-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_realtek.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 181e15072692..ed7982f5460d 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -3601,8 +3601,8 @@ static void alc5505_dsp_init(struct hda_codec *codec) } #ifdef HALT_REALTEK_ALC5505 -#define alc5505_dsp_suspend(codec) /* NOP */ -#define alc5505_dsp_resume(codec) /* NOP */ +#define alc5505_dsp_suspend(codec) do { } while (0) /* NOP */ +#define alc5505_dsp_resume(codec) do { } while (0) /* NOP */ #else #define alc5505_dsp_suspend(codec) alc5505_dsp_halt(codec) #define alc5505_dsp_resume(codec) alc5505_dsp_back_from_halt(codec) |