riscv: Fix fill_callchain return value

commit 2b2b574ac587ec5bd7716a356492a85ab8b0ce9f upstream.

perf_callchain_store return 0 on success, -1 otherwise,
fix fill_callchain to return correct bool value.

Fixes: dbeb90b0c1eb ("riscv: Add perf callchain support")
Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/riscv/kernel/perf_callchain.c b/arch/riscv/kernel/perf_callchain.c
index 8ecfc4c128bc5fc45f181564e2fac71794df3a17..d82c291c1e4ca1f4bf086c76fdb1af8c8c168f1b 100644 (file)
--- a/arch/riscv/kernel/perf_callchain.c
+++ b/arch/riscv/kernel/perf_callchain.c
@@ -73,7 +73,7 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 
 static bool fill_callchain(void *entry, unsigned long pc)
 {
-       return perf_callchain_store(entry, pc);
+       return perf_callchain_store(entry, pc) == 0;
 }
 
 void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,