[PATCH] Stop snd-powermac oopsing on non-pmac hardware.

We shouldn't be assuming that ppc_md.feature_call will be present.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index 844d76152ea2..c89e82eb06a6 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -765,7 +765,8 @@ snd_pmac_ctrl_intr(int irq, void *devid, struct pt_regs *regs)
  */
 static void snd_pmac_sound_feature(pmac_t *chip, int enable)
 {
-        ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
+        if (ppc_md.feature_call)
+                ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
 }
 
 /*