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authorJames Simmons <jsimmons@infradead.org>2012-11-14 18:15:32 +0000
committerJames Simmons <jsimmons@infradead.org>2012-11-14 18:15:32 +0000
commitb44959f2817032bc4668434bbe1cf9ab28b8cb21 (patch)
treede3bd861b36c836ac9b7b6e8dc179ca1985b6593 /arch/arm/kernel/ftrace.c
parente22956a2faa9cf34cec4a471131d50c6be75b0c2 (diff)
parent2216c9e74fb3baac3cb73952158dbe38b703997e (diff)
Merge branch 'drm-core-next'HEADmaster
Conflicts: drivers/gpu/drm/tdfx/tdfx_drv.c
Diffstat (limited to 'arch/arm/kernel/ftrace.c')
-rw-r--r--arch/arm/kernel/ftrace.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index df0bf0c8cb7..34e56647dce 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -179,19 +179,20 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
old = *parent;
*parent = return_hooker;
- err = ftrace_push_return_trace(old, self_addr, &trace.depth,
- frame_pointer);
- if (err == -EBUSY) {
- *parent = old;
- return;
- }
-
trace.func = self_addr;
+ trace.depth = current->curr_ret_stack + 1;
/* Only trace if the calling function expects to */
if (!ftrace_graph_entry(&trace)) {
- current->curr_ret_stack--;
*parent = old;
+ return;
+ }
+
+ err = ftrace_push_return_trace(old, self_addr, &trace.depth,
+ frame_pointer);
+ if (err == -EBUSY) {
+ *parent = old;
+ return;
}
}