linux-kernel - [PATCH] riscv: perf_event: Remove redundant initialization of variable ret

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Date:   Fri, 26 Nov 2021 22:31:23 +0000
From:   Colin Ian King <colin.i.king@...glemail.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        linux-perf-users@...r.kernel.org, linux-riscv@...ts.infradead.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] riscv: perf_event: Remove redundant initialization of variable ret

The variable ret is being initialized with a value that is never
read, it is being updated later on. The assignment is redundant and
can be removed. Clean up the incorrectly indented following
declaration of variable code and move to the same line as the
declaration of variable ret.

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 arch/riscv/kernel/perf_event.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/riscv/kernel/perf_event.c b/arch/riscv/kernel/perf_event.c
index c835f0362d94..cf3e2ac9bbb2 100644
--- a/arch/riscv/kernel/perf_event.c
+++ b/arch/riscv/kernel/perf_event.c
@@ -156,8 +156,7 @@ static int riscv_map_cache_decode(u64 config, unsigned int *type,
 static int riscv_map_cache_event(u64 config)
 {
 	unsigned int type, op, result;
-	int err = -ENOENT;
-		int code;
+	int err, code;
 
 	err = riscv_map_cache_decode(config, &type, &op, &result);
 	if (!riscv_pmu->cache_events || err)
-- 
2.33.1