runtime: fix uninitialized-variable warning

* runtime/stack.c (_stp_stack_kernel_get): Initialize pc = 0.
  (_stp_stack_user_get): Ditto.

diff --git a/runtime/stack.c b/runtime/stack.c
index 682aee3323893d54a3e7e8c7d76db5c6ae4a027d..aaa3ec54bda4a8e7df0899d737ed23eb7211d6f1 100644 (file)
--- a/runtime/stack.c
+++ b/runtime/stack.c
@@ -328,7 +328,7 @@ static unsigned long _stp_stack_unwind_one_kernel(struct context *c, unsigned de
 
 static unsigned long _stp_stack_kernel_get(struct context *c, unsigned depth)
 {
-       unsigned long pc;
+       unsigned long pc = 0;
 
        if (c->uwcache_kernel.state == uwcache_uninitialized) {
                c->uwcache_kernel.depth = 0;
@@ -513,7 +513,7 @@ static unsigned long _stp_stack_unwind_one_user(struct context *c, unsigned dept
 
 static unsigned long _stp_stack_user_get(struct context *c, unsigned depth)
 {
-       unsigned long pc;
+       unsigned long pc = 0;
 
        if (c->uwcache_user.state == uwcache_uninitialized) {
                c->uwcache_user.depth = 0;