tree 6768bcbdfba41b7e4a79f5faee5d4f117e076321
parent 6540dffa6ecfe0d99fb263548dcc4b35ccefe784
author Jesper Juhl <jesper.juhl@gmail.com> 1150192692 +0200
committer Jaroslav Kysela <perex@suse.cz> 1151004862 +0200

[ALSA] fix potential NULL pointer deref in snd_sb8dsp_midi_interrupt()

First testing if a pointer is NULL and if it is (or might be), proceeding
with code that dereferences that same pointer is clearly a mistake.
This happens in sound/isa/sb/sb8_midi.c::snd_sb8dsp_midi_interrupt()
The patch below reworks the code so this unfortunate case doesn't happen.
Also remove some blank comments.
Found by the Coverity checker as bug #367
Patch is compile testted only due to lack of hardware.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>