[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>
diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index 59482a4..272ae38 100644
--- a/sound/ppc/keywest.c
+++ b/sound/ppc/keywest.c
@@ -117,6 +117,9 @@
{
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;