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| author | Dan Carpenter | 2019-01-08 08:43:30 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-01-13 09:51:06 +0100 |
| commit | 281a9e46a94c18d3c4377aee3221b89aa65d2e00 (patch) | |
| tree | 93bc588f16d4576c21a66fbad5a1ad260682b8b6 /sound | |
| parent | media: cx23885: only reset DMA on problematic CPUs (diff) | |
| download | kernel-qcow2-linux-281a9e46a94c18d3c4377aee3221b89aa65d2e00.tar.gz kernel-qcow2-linux-281a9e46a94c18d3c4377aee3221b89aa65d2e00.tar.xz kernel-qcow2-linux-281a9e46a94c18d3c4377aee3221b89aa65d2e00.zip | |
ALSA: cs46xx: Potential NULL dereference in probe
commit 1524f4e47f90b27a3ac84efbdd94c63172246a6f upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/cs46xx/dsp_spos.c | 3 |
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; |