ARM: 9406/1: Fix callchain_trace() return value

perf_callchain_store() return 0 on success, -1 otherwise, fix
callchain_trace() to return correct bool value. So walk_stackframe() can
have a chance to stop walking the stack ahead.

Fixes: 70ccc7c0667b ("ARM: 9258/1: stacktrace: Make stack walk callback consistent with generic code")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/kernel/perf_callchain.c b/arch/arm/kernel/perf_callchain.c
index 7147edbe56c67c41915c5fa8ae11a3b5493261d3..1d230ac9d0eb5c86fd5d0516b9b4b07c1f9b173b 100644 (file)
--- a/arch/arm/kernel/perf_callchain.c
+++ b/arch/arm/kernel/perf_callchain.c
@@ -85,8 +85,7 @@ static bool
 callchain_trace(void *data, unsigned long pc)
 {
        struct perf_callchain_entry_ctx *entry = data;
-       perf_callchain_store(entry, pc);
-       return true;
+       return perf_callchain_store(entry, pc) == 0;
 }
 
 void