From 7bb9529602f8bb41a92275825b808a42ed33e5be Mon Sep 17 00:00:00 2001 From: Ricardo Cerqueira Date: Tue, 20 Dec 2005 18:26:26 -0200 Subject: V4L/DVB (3200): Fix saa7134 ALSA/OSS collisions - When ALSA or OSS are loaded, check if the other is present Fixed hotplug notifiers cleanup on module removal - The saa7134 DMA sound modules now have their own Kconfig entries, and if built statically enforce exclusivity - SND_PCM_OSS isn't necessary for the OSS driver Signed-off-by: Ricardo Cerqueira Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/saa7134/saa7134-alsa.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers/media/video/saa7134/saa7134-alsa.c') diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c index 6752dd1c1e8a..ade05f75fdb0 100644 --- a/drivers/media/video/saa7134/saa7134-alsa.c +++ b/drivers/media/video/saa7134/saa7134-alsa.c @@ -989,6 +989,14 @@ static int saa7134_alsa_init(void) struct saa7134_dev *dev = NULL; struct list_head *list; + if (!dmasound_init && !dmasound_exit) { + dmasound_init = alsa_device_init; + dmasound_exit = alsa_device_exit; + } else { + printk(KERN_WARNING "saa7134 ALSA: can't load, DMA sound handler already assigned (probably to OSS)\n"); + return -EBUSY; + } + printk(KERN_INFO "saa7134 ALSA driver for DMA sound loaded\n"); list_for_each(list,&saa7134_devlist) { @@ -1001,9 +1009,6 @@ static int saa7134_alsa_init(void) } } - dmasound_init = alsa_device_init; - dmasound_exit = alsa_device_exit; - if (dev == NULL) printk(KERN_INFO "saa7134 ALSA: no saa7134 cards found\n"); @@ -1023,6 +1028,8 @@ static void saa7134_alsa_exit(void) snd_card_free(snd_saa7134_cards[idx]); } + dmasound_init = NULL; + dmasound_exit = NULL; printk(KERN_INFO "saa7134 ALSA driver for DMA sound unloaded\n"); return; -- cgit v1.2.3