linux-kernel - [PATCH 5.15 094/913] riscv: Fix fill

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Message-Id: <20220405070342.646868015@linuxfoundation.org>
Date:   Tue,  5 Apr 2022 09:19:16 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Nikita Shubin <n.shubin@...ro.com>,
        Palmer Dabbelt <palmer@...osinc.com>
Subject: [PATCH 5.15 094/913] riscv: Fix fill_callchain return value

From: Nikita Shubin <n.shubin@...ro.com>

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@...ro.com>
Cc: stable@...r.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@...osinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/riscv/kernel/perf_callchain.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/riscv/kernel/perf_callchain.c
+++ b/arch/riscv/kernel/perf_callchain.c
@@ -73,7 +73,7 @@ void perf_callchain_user(struct perf_cal
 
 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,