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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-06 09:48:31 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-06 09:48:31 -0700
commitc87985a3ce723995fc7b25e598238d67154108a1 (patch)
treee60def1b77c25c1d74180f62e8a5603f9826f209 /arch/arm/kernel/ftrace.c
parenttty: Fix race in tty release (diff)
parentLinux 3.6-rc1 (diff)
downloadlinux-dev-c87985a3ce723995fc7b25e598238d67154108a1.tar.xz
linux-dev-c87985a3ce723995fc7b25e598238d67154108a1.zip
Merge tty-next into 3.6-rc1
This handles the merge issue in: arch/um/drivers/line.c arch/um/drivers/line.h And resolves the duplicate patches that were in both trees do to the tty-next branch not getting merged into 3.6-rc1. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 df0bf0c8cb79..34e56647dcee 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;
}
}