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>
git-mirror · Dec 7, 2009 · ed872d0 · ed872d0
1 parent b9b1e1c
commit ed872d0
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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);
 	/*