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authorDan Carpenter <dan.carpenter@oracle.com>2019-01-08 10:43:30 +0300
committerTakashi Iwai <tiwai@suse.de>2019-01-08 09:02:54 +0100
commit1524f4e47f90b27a3ac84efbdd94c63172246a6f (patch)
tree2b79fdf07f434e2739cf22297e65fef8abef5079 /sound/pci/cs46xx
parentc2a7c55a04065c3b0c32d23b099db7ea1dbf6250 (diff)
downloadlinux-stericsson-1524f4e47f90b27a3ac84efbdd94c63172246a6f.tar.gz
ALSA: cs46xx: Potential NULL dereference in probe
The "chip->dsp_spos_instance" can be NULL on some of the ealier error paths in snd_cs46xx_create(). Reported-by: "Yavuz, Tuba" <tuba@ece.ufl.edu> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/cs46xx')
-rw-r--r--sound/pci/cs46xx/dsp_spos.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/cs46xx/dsp_spos.c b/sound/pci/cs46xx/dsp_spos.c
index 598d140bb7cb..5fc497c6d738 100644
--- a/sound/pci/cs46xx/dsp_spos.c
+++ b/sound/pci/cs46xx/dsp_spos.c
@@ -903,6 +903,9 @@ int cs46xx_dsp_proc_done (struct snd_cs46xx *chip)
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
int i;
+ if (!ins)
+ return 0;
+
snd_info_free_entry(ins->proc_sym_info_entry);
ins->proc_sym_info_entry = NULL;