[PATCH] remove redundant NULL checks before kfree() in sound/ and avoid casting pointers about to be kfree()'ed

Checking a pointer for NULL before calling kfree() on it is redundant,
kfree() deals with NULL pointers just fine.
This patch removes such checks from sound/

This patch also makes another, but closely related, change.
It avoids casting pointers about to be kfree()'ed.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/sound/oss/sb_common.c b/sound/oss/sb_common.c
index ce359e6c933a..5f955e3d2e26 100644
--- a/sound/oss/sb_common.c
+++ b/sound/oss/sb_common.c
@@ -915,8 +915,8 @@ void sb_dsp_unload(struct address_info *hw_config, int sbmpu)
         }
         else
                 release_region(hw_config->io_base, 16);
-        if(detected_devc)
-                kfree(detected_devc);
+
+        kfree(detected_devc);
 }
 
 /*