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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2020-01-11 15:47:35 -0600
committerTakashi Iwai <tiwai@suse.de>2020-01-12 09:45:09 +0100
commit8a71821f12a010d7100f9cc1f7b218aff0313c4a (patch)
tree6a316e9404d56d4580072a318d001e50af82cc7a /sound
parentALSA: timer: fix nsec/sec initialization confusion (diff)
downloadlinux-dev-8a71821f12a010d7100f9cc1f7b218aff0313c4a.tar.xz
linux-dev-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')
-rw-r--r--sound/pci/hda/patch_realtek.c4
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)