[PATCH] Fix sequencer missing negative bound check

'int dev' came out of an 'unsigned char *' - as such, it will not get
a negative value. Thanks Valdis.

Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
Cc: Jaroslav Kysela <perex@suse.cz>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c
index 6986142..347cd79 100644 (file)
--- a/sound/oss/sequencer.c
+++ b/sound/oss/sequencer.c
@@ -709,11 +709,11 @@ static void seq_local_event(unsigned char *event_rec)
 
 static void seq_sysex_message(unsigned char *event_rec)
 {
-       int dev = event_rec[1];
+       unsigned int dev = event_rec[1];
        int i, l = 0;
        unsigned char  *buf = &event_rec[2];
 
-       if ((int) dev > max_synthdev)
+       if (dev > max_synthdev)
                return;
        if (!(synth_open_mask & (1 << dev)))
                return;