[ALSA] powermac - Fix Oops when conflicting with aoa driver

Fixed Oops when conflictin with aoa driver due to lack of i2c initialization. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
git-mirror · Sep 23, 2006 · 783eaf4 · 783eaf4
1 parent 3071920
commit 783eaf4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
@@ -117,6 +117,9 @@ int __init snd_pmac_tumbler_post_init(void)
 {
 	int err;
 
+	if (!keywest_ctx || !keywest_ctx->client)
+		return -ENXIO;
+
 	if ((err = keywest_ctx->init_client(keywest_ctx)) < 0) {
 		snd_printk(KERN_ERR "tumbler: %i :cannot initialize the MCS\n", err);
 		return err;