oss/alsa: Do not invoke UB described in 7.15.1.1 (this time for ADC)
Signed-off-by: malc <av1474@comtv.ru>
diff --git a/audio/ossaudio.c b/audio/ossaudio.c
index dae25e9..4002f14 100644
--- a/audio/ossaudio.c
+++ b/audio/ossaudio.c
@@ -781,20 +781,23 @@
static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...)
{
- va_list ap;
- int poll_mode;
OSSVoiceIn *oss = (OSSVoiceIn *) hw;
- va_start (ap, cmd);
- poll_mode = va_arg (ap, int);
- va_end (ap);
-
switch (cmd) {
case VOICE_ENABLE:
- if (poll_mode && oss_poll_in (hw)) {
- poll_mode = 0;
+ {
+ va_list ap;
+ int poll_mode;
+
+ va_start (ap, cmd);
+ poll_mode = va_arg (ap, int);
+ va_end (ap);
+
+ if (poll_mode && oss_poll_in (hw)) {
+ poll_mode = 0;
+ }
+ hw->poll_mode = poll_mode;
}
- hw->poll_mode = poll_mode;
break;
case VOICE_DISABLE:
