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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2009-12-07 03:14:17 +0100 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-12-07 07:04:33 +0100 |
| commit | ed872d09effd54aa8ecb4ceedbc4dbab9592f337 (patch) | |
| tree | 34be7e06922a496386ad91500fb8e73e87c846a8 | |
| parent | b9b1e1c71a9481c0c34ed5bed42f1bfa730fd39e (diff) | |
| download | lwn-ed872d09effd54aa8ecb4ceedbc4dbab9592f337.tar.gz lwn-ed872d09effd54aa8ecb4ceedbc4dbab9592f337.zip | |
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@gmail.com>
Cc: Prasad <prasad@linux.vnet.ibm.com>
| -rw-r--r-- | 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 4d14a384a01e..42da1ce19ec0 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); /* |