--- /dev/null
+From fb615499f0ad28ed74201c1cdfddf9e64e205424 Mon Sep 17 00:00:00 2001
+From: Takashi Iwai <tiwai@suse.de>
+Date: Tue, 27 Aug 2013 12:03:01 +0200
+Subject: ALSA: opti9xx: Fix conflicting driver object name
+
+From: Takashi Iwai <tiwai@suse.de>
+
+commit fb615499f0ad28ed74201c1cdfddf9e64e205424 upstream.
+
+The recent commit to delay the release of kobject triggered NULL
+dereferences of opti9xx drivers. The cause is that all
+snd-opti92x-ad1848, snd-opti92x-cs4231 and snd-opti93x drivers
+register the PnP card driver with the very same name, and also
+snd-opti92x-ad1848 and -cs4231 drivers register the ISA driver with
+the same name, too. When these drivers are built in, quick
+"register-release-and-re-register" actions occur, and this results in
+Oops because of the same name is assigned to the kobject.
+
+The fix is simply to assign individual names. As a bonus, by using
+KBUILD_MODNAME, the patch reduces more lines than it adds.
+
+The fix is based on the suggestion by Russell King.
+
+Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ sound/isa/opti9xx/opti92x-ad1848.c | 8 ++------
+ 1 file changed, 2 insertions(+), 6 deletions(-)
+
+--- a/sound/isa/opti9xx/opti92x-ad1848.c
++++ b/sound/isa/opti9xx/opti92x-ad1848.c
+@@ -173,11 +173,7 @@ MODULE_DEVICE_TABLE(pnp_card, snd_opti9x
+
+ #endif /* CONFIG_PNP */
+
+-#ifdef OPTi93X
+-#define DEV_NAME "opti93x"
+-#else
+-#define DEV_NAME "opti92x"
+-#endif
++#define DEV_NAME KBUILD_MODNAME
+
+ static char * snd_opti9xx_names[] = {
+ "unknown",
+@@ -1126,7 +1122,7 @@ static void __devexit snd_opti9xx_pnp_re
+
+ static struct pnp_card_driver opti9xx_pnpc_driver = {
+ .flags = PNP_DRIVER_RES_DISABLE,
+- .name = "opti9xx",
++ .name = DEV_NAME,
+ .id_table = snd_opti9xx_pnpids,
+ .probe = snd_opti9xx_pnp_probe,
+ .remove = __devexit_p(snd_opti9xx_pnp_remove),