From: Kangjie Lu <kjlu@umn.edu>
To: kjlu@umn.edu
Cc: pakki001@umn.edu, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org
Subject: [PATCH] gus: add a check of the status of snd_ctl_add
Date: Tue, 25 Dec 2018 19:40:51 -0600 [thread overview]
Message-ID: <20181226014052.70937-1-kjlu@umn.edu> (raw)
snd_ctl_add() could fail, so let's check its status and issue an error
message if it indeed fails.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
sound/isa/gus/gus_main.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/sound/isa/gus/gus_main.c b/sound/isa/gus/gus_main.c
index 3b8a0c880db5..33c8b66d5c8a 100644
--- a/sound/isa/gus/gus_main.c
+++ b/sound/isa/gus/gus_main.c
@@ -92,8 +92,17 @@ static const struct snd_kcontrol_new snd_gus_joystick_control = {
static void snd_gus_init_control(struct snd_gus_card *gus)
{
- if (!gus->ace_flag)
- snd_ctl_add(gus->card, snd_ctl_new1(&snd_gus_joystick_control, gus));
+ int ret;
+
+ if (!gus->ace_flag) {
+ ret =
+ snd_ctl_add(gus->card,
+ snd_ctl_new1(&snd_gus_joystick_control,
+ gus));
+ if (ret)
+ snd_printk(KERN_ERR "gus: snd_ctl_add failed: %d\n",
+ ret);
+ }
}
/*
--
2.17.2 (Apple Git-113)
next reply other threads:[~2018-12-26 1:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-26 1:40 Kangjie Lu [this message]
2019-01-01 8:53 ` Takashi Iwai
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