diff options
| author | Colin Ian King <colin.king@canonical.com> | 2021-08-04 10:50:10 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-26 11:40:29 +0100 |
| commit | a42d489e7a06a65a76bde1f8cbaaf8871e48d73c (patch) | |
| tree | 385b50e32337b1b845d478e2c92ea2432ae3e11c | |
| parent | 32e096cf628970bbb1393316de06c6358821b422 (diff) | |
media: cx23885: Fix snd_card_free call on null card pointer
[ Upstream commit 7266dda2f1dfe151b12ef0c14eb4d4e622fb211c ]
Currently a call to snd_card_new that fails will set card with a NULL
pointer, this causes a null pointer dereference on the error cleanup
path when card it passed to snd_card_free. Fix this by adding a new
error exit path that does not call snd_card_free and exiting via this
new path.
Addresses-Coverity: ("Explicit null dereference")
Fixes: 9e44d63246a9 ("[media] cx23885: Add ALSA support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/media/pci/cx23885/cx23885-alsa.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/pci/cx23885/cx23885-alsa.c b/drivers/media/pci/cx23885/cx23885-alsa.c index d8c3637e492e..a7f34af6c65b 100644 --- a/drivers/media/pci/cx23885/cx23885-alsa.c +++ b/drivers/media/pci/cx23885/cx23885-alsa.c @@ -560,7 +560,7 @@ struct cx23885_audio_dev *cx23885_audio_register(struct cx23885_dev *dev) SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, THIS_MODULE, sizeof(struct cx23885_audio_dev), &card); if (err < 0) - goto error; + goto error_msg; chip = (struct cx23885_audio_dev *) card->private_data; chip->dev = dev; @@ -586,6 +586,7 @@ struct cx23885_audio_dev *cx23885_audio_register(struct cx23885_dev *dev) error: snd_card_free(card); +error_msg: pr_err("%s(): Failed to register analog audio adapter\n", __func__); |