tree 5c9a4c47f735174d13d3ab6d64c8c191d70d0968
parent 27f7ad53829f79e799a253285318bff79ece15bd
author Dan Carpenter <error27@gmail.com> 1283983901 +0200
committer Takashi Iwai <tiwai@suse.de> 1284015921 +0200

ALSA: rawmidi: fix the get next midi device ioctl

If we pass in a device which is higher than SNDRV_RAWMIDI_DEVICES then
the "next device" should be -1.  This function just returns device + 1.

But the main thing is that "device + 1" can lead to a (harmless) integer
overflow and that annoys static analysis tools.

[fix the case for device == SNDRV_RAWMIDI_DEVICE by tiwai]

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>