[ALSA] Add snd_card_set_generic_dev() call

ARM,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,MIPS
MIPS AU1x00 driver,PPC,PPC PowerMac driver,SPARC,SPARC AMD7930 driver
SPARC cs4231 driver,SPARC DBRI driver
- Added snd_card_set_generic_dev() call.
- Added SND_GENERIC_DRIVER to Kconfig.
- Clean up the error path in probe if necessary.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/ppc/Kconfig b/sound/ppc/Kconfig
index 75213bf..bda5bc4 100644
--- a/sound/ppc/Kconfig
+++ b/sound/ppc/Kconfig
@@ -13,6 +13,7 @@
 	tristate "PowerMac (AWACS, DACA, Burgundy, Tumbler, Keywest)"
 	depends on SND && I2C && INPUT && PPC_PMAC
 	select SND_PCM
+	select SND_GENERIC_DRIVER
 	help
 	  Say Y here to include support for the integrated sound device.