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Diffstat (limited to 'drivers/media/video/saa7134/saa7134-oss.c')
-rw-r--r--drivers/media/video/saa7134/saa7134-oss.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/media/video/saa7134/saa7134-oss.c b/drivers/media/video/saa7134/saa7134-oss.c
index 513a699a6df2..8badd2a9cb2f 100644
--- a/drivers/media/video/saa7134/saa7134-oss.c
+++ b/drivers/media/video/saa7134/saa7134-oss.c
@@ -959,8 +959,17 @@ static int saa7134_oss_init(void)
struct saa7134_dev *dev = NULL;
struct list_head *list;
+ if (!dmasound_init && !dmasound_exit) {
+ dmasound_init = oss_device_init;
+ dmasound_exit = oss_device_exit;
+ } else {
+ printk(KERN_WARNING "saa7134 OSS: can't load, DMA sound handler already assigned (probably to ALSA)\n");
+ return -EBUSY;
+ }
+
printk(KERN_INFO "saa7134 OSS driver for DMA sound loaded\n");
+
list_for_each(list,&saa7134_devlist) {
dev = list_entry(list, struct saa7134_dev, devlist);
if (dev->dmasound.priv_data == NULL) {
@@ -974,9 +983,6 @@ static int saa7134_oss_init(void)
if (dev == NULL)
printk(KERN_INFO "saa7134 OSS: no saa7134 cards found\n");
- dmasound_init = oss_device_init;
- dmasound_exit = oss_device_exit;
-
return 0;
}
@@ -997,12 +1003,16 @@ static void saa7134_oss_exit(void)
}
+ dmasound_init = NULL;
+ dmasound_exit = NULL;
+
printk(KERN_INFO "saa7134 OSS driver for DMA sound unloaded\n");
return;
}
-module_init(saa7134_oss_init);
+/* We initialize this late, to make sure the sound system is up and running */
+late_initcall(saa7134_oss_init);
module_exit(saa7134_oss_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");