audio/alsaaudio: Remove superfluous semicolons

Fixes: 286a5d201e
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200218094402.26625-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

audio/alsaaudio.c

@@ -819,7 +819,7 @@ static size_t alsa_read(HWVoiceIn *hw, void *buf, size_t len)
             switch (nread) {
             case 0:
                 trace_alsa_read_zero(len);
-                return pos;;
+                return pos;
 
             case -EPIPE:
                 if (alsa_recover(alsa->handle)) {
@@ -835,7 +835,7 @@ static size_t alsa_read(HWVoiceIn *hw, void *buf, size_t len)
             default:
                 alsa_logerr(nread, "Failed to read %zu frames to %p\n",
                             len, dst);
-                return pos;;
+                return pos;
             }
         }