ALSA: emu10k1: Fix possible NULL dereference
authorTakashi Iwai <tiwai@suse.de>
Wed, 5 Mar 2014 11:13:10 +0000 (12:13 +0100)
committerTakashi Iwai <tiwai@suse.de>
Wed, 5 Mar 2014 11:15:56 +0000 (12:15 +0100)
commit4913cd6964d9548d8636ac87e05b7db6c486add5
treed4aecf950338eacd756757cfca504488f3e86001
parent4f50b41fa3deb541364462f3014e0b9d09b91f75
ALSA: emu10k1: Fix possible NULL dereference

The previous dev_err() conversion resulted in a code that may give
NULL dereference in snd_emu10k1_ptr_write().  Since it's a sanity
check, better to be replaced with a debug macro like other places in
this driver.

Fixes: 6f002b02166c ('ALSA: emu10k1: Use standard printk helpers')
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/emu10k1/io.c