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 arnd@arndb.de --- v2: return an error instead trying to handle gracefully --- sound/mips/hal2.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c index ede449f0b50d..0af4f7a9b3e7 100644 --- a/sound/mips/hal2.c +++ b/sound/mips/hal2.c @@ -219,6 +219,9 @@ 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: + l = 0; + r = 0; } ucontrol->value.integer.value[0] = l; ucontrol->value.integer.value[1] = r; @@ -256,6 +259,9 @@ 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: + new = 0; + old = 0; } return old != new; }