From 8b169cb27c8267cd344fd71c2067ea864dd4c2e7 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 16 Jan 2017 14:27:57 +0100 Subject: ALSA: mips: avoid potential uninitialized variable use MIPS allmodconfig results in this warning: sound/mips/hal2.c: In function 'hal2_gain_get': sound/mips/hal2.c:224:35: error: 'r' may be used uninitialized in this function [-Werror=maybe-uninitialized] sound/mips/hal2.c:223:35: error: 'l' may be used uninitialized in this function [-Werror=maybe-uninitialized] sound/mips/hal2.c: In function 'hal2_gain_put': sound/mips/hal2.c:260:13: error: 'new' may be used uninitialized in this function [-Werror=maybe-uninitialized] sound/mips/hal2.c:260:13: error: 'old' may be used uninitialized in this function [-Werror=maybe-uninitialized] Returning an error for all unexpected cases shuts up the warning Signed-off-by: Arnd Bergmann Signed-off-by: Takashi Iwai --- sound/mips/hal2.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sound/mips') diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c index ede449f0b50d..00fc9241d266 100644 --- a/sound/mips/hal2.c +++ b/sound/mips/hal2.c @@ -219,6 +219,8 @@ static int hal2_gain_get(struct snd_kcontrol *kcontrol, l = (tmp >> H2I_C2_L_GAIN_SHIFT) & 15; r = (tmp >> H2I_C2_R_GAIN_SHIFT) & 15; break; + default: + return -EINVAL; } ucontrol->value.integer.value[0] = l; ucontrol->value.integer.value[1] = r; @@ -256,6 +258,8 @@ static int hal2_gain_put(struct snd_kcontrol *kcontrol, new |= (r << H2I_C2_R_GAIN_SHIFT); hal2_i_write32(hal2, H2I_ADC_C2, new); break; + default: + return -EINVAL; } return old != new; } -- cgit