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| author |   Takashi Iwai <tiwai@suse.de> | 2021-04-01 10:04:31 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-04-01 10:04:34 +0200 |
| commit | 1678320e74d32054942182b19b1e9b42aaba8b29 (patch) | |
| tree | 50ef9b4c8edef84fb22adeece369c25183301495 /sound | |
| parent | Merge tag 'tags/mute-led-rework' into for-next (diff) | |
| parent | ALSA: control led - improve the set_led_id() parser (diff) | |
| download | linux-dev-1678320e74d32054942182b19b1e9b42aaba8b29.tar.xz linux-dev-1678320e74d32054942182b19b1e9b42aaba8b29.zip | |
Merge branch 'topic/mute-led' into for-next
Pull mute-LED helper fixes from Jaroslav.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/control.c | 4 | ||||
| -rw-r--r-- | sound/core/control_led.c | 5 |
2 files changed, 7 insertions, 2 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index 6825ca75daf5..20d707d4ef40 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -2074,7 +2074,7 @@ void snd_ctl_disconnect_layer(struct snd_ctl_layer_ops *lops) struct snd_ctl_layer_ops *lops2, *prev_lops2; down_write(&snd_ctl_layer_rwsem); - for (lops2 = snd_ctl_layer, prev_lops2 = NULL; lops2; lops2 = lops2->next) + for (lops2 = snd_ctl_layer, prev_lops2 = NULL; lops2; lops2 = lops2->next) { if (lops2 == lops) { if (!prev_lops2) snd_ctl_layer = lops->next; @@ -2082,6 +2082,8 @@ void snd_ctl_disconnect_layer(struct snd_ctl_layer_ops *lops) prev_lops2->next = lops->next; break; } + prev_lops2 = lops2; + } up_write(&snd_ctl_layer_rwsem); } EXPORT_SYMBOL_GPL(snd_ctl_disconnect_layer); diff --git a/sound/core/control_led.c b/sound/core/control_led.c index d4fb8b873f34..788fd9e275e0 100644 --- a/sound/core/control_led.c +++ b/sound/core/control_led.c @@ -506,7 +506,7 @@ static char *parse_iface(char *s, unsigned int *val) static ssize_t set_led_id(struct snd_ctl_led_card *led_card, const char *buf, size_t count, bool attach) { - char buf2[256], *s; + char buf2[256], *s, *os; size_t len = max(sizeof(s) - 1, count); struct snd_ctl_elem_id id; int err; @@ -517,6 +517,7 @@ static ssize_t set_led_id(struct snd_ctl_led_card *led_card, const char *buf, si id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; s = buf2; while (*s) { + os = s; if (!strncasecmp(s, "numid=", 6)) { s = parse_uint(s + 6, &id.numid); } else if (!strncasecmp(s, "iface=", 6)) { @@ -546,6 +547,8 @@ static ssize_t set_led_id(struct snd_ctl_led_card *led_card, const char *buf, si } if (*s == ',') s++; + if (s == os) + break; } err = snd_ctl_led_set_id(led_card->number, &id, led_card->led->group, attach); |