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authorTakashi Iwai <tiwai@suse.de>2015-01-29 18:09:05 +0100
committerTakashi Iwai <tiwai@suse.de>2015-02-02 14:42:44 +0100
commit7c35860d1ae555a040f561c7cfdde066053787f0 (patch)
tree734792b3d4c9efb5da4ce73aba97cca0d02d672a /sound/core/timer.c
parent07cc3e8bd57cd9d9f8f30c30ed859a55a7d8f4d3 (diff)
downloadlinux-7c35860d1ae555a040f561c7cfdde066053787f0.tar.gz
ALSA: timer: Propagate the error at initialization
... instead of just printing errors. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/timer.c')
-rw-r--r--sound/core/timer.c32
1 files changed, 22 insertions, 10 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 777a45e08e53..28b673d4f812 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -1942,6 +1942,15 @@ static const struct file_operations snd_timer_f_ops =
.fasync = snd_timer_user_fasync,
};
+/* unregister the system timer */
+static void snd_timer_free_all(void)
+{
+ struct snd_timer *timer, *n;
+
+ list_for_each_entry_safe(timer, n, &snd_timer_list, device_list)
+ snd_timer_free(timer);
+}
+
/*
* ENTRY functions
*/
@@ -1955,25 +1964,28 @@ static int __init alsa_timer_init(void)
"system timer");
#endif
- if ((err = snd_timer_register_system()) < 0)
+ err = snd_timer_register_system();
+ if (err < 0) {
pr_err("ALSA: unable to register system timer (%i)\n", err);
- if ((err = snd_register_device(SNDRV_DEVICE_TYPE_TIMER, NULL, 0,
- &snd_timer_f_ops, NULL, "timer")) < 0)
+ return err;
+ }
+
+ err = snd_register_device(SNDRV_DEVICE_TYPE_TIMER, NULL, 0,
+ &snd_timer_f_ops, NULL, "timer");
+ if (err < 0) {
pr_err("ALSA: unable to register timer device (%i)\n", err);
+ snd_timer_free_all();
+ return err;
+ }
+
snd_timer_proc_init();
return 0;
}
static void __exit alsa_timer_exit(void)
{
- struct list_head *p, *n;
-
snd_unregister_device(SNDRV_DEVICE_TYPE_TIMER, NULL, 0);
- /* unregister the system timer */
- list_for_each_safe(p, n, &snd_timer_list) {
- struct snd_timer *timer = list_entry(p, struct snd_timer, device_list);
- snd_timer_free(timer);
- }
+ snd_timer_free_all();
snd_timer_proc_done();
#ifdef SNDRV_OSS_INFO_DEV_TIMERS
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1);