oprofile: more whitespace fixes

Signed-off-by: Robert Richter <robert.richter@amd.com>
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index e2095cb..36e3241 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -53,7 +53,7 @@
 } __attribute__((packed));
 
 static struct frame_head *
-dump_user_backtrace(struct frame_head * head)
+dump_user_backtrace(struct frame_head *head)
 {
 	struct frame_head bufhead[2];