Commit ed872d09 authored Dec 07, 2009 by Frederic Weisbecker

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>

parent b9b1e1c7

include/linux/hw_breakpoint.h

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -22,6 +22,8 @@ enum {

	static inline void hw_breakpoint_init(struct perf_event_attr *attr)		static inline void hw_breakpoint_init(struct perf_event_attr *attr)
	{		{
			memset(attr, 0, sizeof(*attr));

	attr->type = PERF_TYPE_BREAKPOINT;		attr->type = PERF_TYPE_BREAKPOINT;
	attr->size = sizeof(*attr);		attr->size = sizeof(*attr);
	/*		/*