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sound: OSS: keep index within bounds of midi_devs[] 

When the {orig,midi}_dev equals num_midis, that's one too
large already.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Roel Kluin 2009-11-16 17:05:02 +01:00 committed by Takashi Iwai
parent 0c3c35e148
commit 02bb57aeb0
2 changed files with 2 additions and 2 deletions
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2
sound/oss/midi_synth.c
View File

@ -426,7 +426,7 @@ midi_synth_open(int dev, int mode)
int err;
struct midi_input_info *inc;
if (orig_dev < 0 || orig_dev > num_midis || midi_devs[orig_dev] == NULL)
if (orig_dev < 0 || orig_dev >= num_midis || midi_devs[orig_dev] == NULL)
return -ENXIO;
midi2synth[orig_dev] = dev;

2
sound/oss/mpu401.c
View File

@ -770,7 +770,7 @@ static int mpu_synth_ioctl(int dev, unsigned int cmd, void __user *arg)
midi_dev = synth_devs[dev]->midi_dev;
if (midi_dev < 0 || midi_dev > num_midis || midi_devs[midi_dev] == NULL)
if (midi_dev < 0 || midi_dev >= num_midis || midi_devs[midi_dev] == NULL)
return -ENXIO;
devc = &dev_conf[midi_dev];