Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

[mv-sheeva.git] / arch / arm / kernel / perf_event.c

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 5efa2647a2fb3bcdf26c58cec440adbc88724e74..d150ad1ccb5d8e3212e6461288f2c0a7ed451c85 100644 (file)
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -700,7 +700,7 @@ user_backtrace(struct frame_tail __user *tail,
         * Frame pointers should strictly progress back up the stack
         * (towards higher addresses).
         */
-       if (tail >= buftail.fp)
+       if (tail + 1 >= buftail.fp)
                return NULL;
 
        return buftail.fp - 1;