From: Zhouyang Jia <jiazhouyang09@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Zhouyang Jia <jiazhouyang09@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Brian Warner <brian.warner@samsung.com>,
Hans Verkuil <hans.verkuil@cisco.com>,
Bhumika Goyal <bhumirks@gmail.com>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] media: cx88: add error handling for snd_ctl_add
Date: Mon, 11 Jun 2018 15:41:58 +0800 [thread overview]
Message-ID: <1528702920-33410-1-git-send-email-jiazhouyang09@gmail.com> (raw)
When snd_ctl_add fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling snd_ctl_add.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
---
drivers/media/pci/cx88/cx88-alsa.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index 8a28fda..d366793 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -962,8 +962,11 @@ static int cx88_audio_initdev(struct pci_dev *pci,
goto error;
/* If there's a wm8775 then add a Line-In ALC switch */
- if (core->sd_wm8775)
- snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch, chip));
+ if (core->sd_wm8775) {
+ err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch, chip));
+ if (err < 0)
+ goto error;
+ }
strcpy(card->driver, "CX88x");
sprintf(card->shortname, "Conexant CX%x", pci->device);
--
2.7.4
reply other threads:[~2018-06-11 7:45 UTC|newest]
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