Commit-ID: ed872d09effd54aa8ecb4ceedbc4dbab9592f337
Gitweb: http://git.kernel.org/tip/ed872d09effd54aa8ecb4ceedbc4dbab9592f337
Author: Frederic Weisbecker <fweisbec@xxxxxxxxx>
AuthorDate: Mon, 7 Dec 2009 03:14:17 +0100
Committer: Frederic Weisbecker <fweisbec@xxxxxxxxx>
CommitDate: Mon, 7 Dec 2009 07:04:33 +0100
hw-breakpoints: Zeroe the breakpoint attrs on initialization
The perf attrs used to set up breakpoint parameters are often allocated
in the stack and not zeroed out before calling hw_breakpoint_init().
Handle it from this helper to avoid random attributes set by the stack.
Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Prasad <prasad@xxxxxxxxxxxxxxxxxx>
---
include/linux/hw_breakpoint.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index 4d14a38..42da1ce 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -22,6 +22,8 @@ enum {
static inline void hw_breakpoint_init(struct perf_event_attr *attr)
{
+ memset(attr, 0, sizeof(*attr));
+
attr->type = PERF_TYPE_BREAKPOINT;
attr->size = sizeof(*attr);
/*
--
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