diff options
| author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2007-10-16 14:54:14 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2007-10-16 16:51:26 +0200 |
| commit | ca2df45a072cef11143f9be8d36c3c256cbebd7b (patch) | |
| tree | c9a5cfb7eae7f734abe4ebf24ebf014e31ea9572 /sound/isa/ad1848/ad1848_lib.c | |
| parent | [ALSA] fix bootup crash in snd_gus_interrupt() (diff) | |
| download | linux-ca2df45a072cef11143f9be8d36c3c256cbebd7b.tar.xz linux-ca2df45a072cef11143f9be8d36c3c256cbebd7b.zip | |
[ALSA] This patch removes open_mutex from the ad1848-lib as
open and close operations are called only from pcm layer
and mutexed there with pcm->open_mutex.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/isa/ad1848/ad1848_lib.c')
| -rw-r--r-- | sound/isa/ad1848/ad1848_lib.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/sound/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c index 31209e11cee5..a901cd1ee692 100644 --- a/sound/isa/ad1848/ad1848_lib.c +++ b/sound/isa/ad1848/ad1848_lib.c @@ -378,11 +378,9 @@ static int snd_ad1848_open(struct snd_ad1848 *chip, unsigned int mode) { unsigned long flags; - mutex_lock(&chip->open_mutex); - if (chip->mode & AD1848_MODE_OPEN) { - mutex_unlock(&chip->open_mutex); + if (chip->mode & AD1848_MODE_OPEN) return -EAGAIN; - } + snd_ad1848_mce_down(chip); #ifdef SNDRV_DEBUG_MCE @@ -423,7 +421,6 @@ static int snd_ad1848_open(struct snd_ad1848 *chip, unsigned int mode) spin_unlock_irqrestore(&chip->reg_lock, flags); chip->mode = mode; - mutex_unlock(&chip->open_mutex); return 0; } @@ -432,11 +429,8 @@ static void snd_ad1848_close(struct snd_ad1848 *chip) { unsigned long flags; - mutex_lock(&chip->open_mutex); - if (!chip->mode) { - mutex_unlock(&chip->open_mutex); + if (!chip->mode) return; - } /* disable IRQ */ spin_lock_irqsave(&chip->reg_lock, flags); outb(0, AD1848P(chip, STATUS)); /* clear IRQ */ @@ -462,7 +456,6 @@ static void snd_ad1848_close(struct snd_ad1848 *chip) spin_unlock_irqrestore(&chip->reg_lock, flags); chip->mode = 0; - mutex_unlock(&chip->open_mutex); } /* @@ -880,7 +873,6 @@ int snd_ad1848_create(struct snd_card *card, if (chip == NULL) return -ENOMEM; spin_lock_init(&chip->reg_lock); - mutex_init(&chip->open_mutex); chip->card = card; chip->port = port; chip->irq = -1; |