linux-kernel - [PATCH] perf/x86/amd/uncore: fix error codes in amd_uncore

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Message-ID: <cec62eba-c4b8-4cb7-9671-58894dd4b974@moroto.mountain>
Date:   Fri, 13 Oct 2023 10:18:12 +0300
From:   Dan Carpenter <dan.carpenter@...aro.org>
To:     Sandipan Das <sandipan.das@....com>
Cc:     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@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, linux-perf-users@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] perf/x86/amd/uncore: fix error codes in amd_uncore_init()

Some of the error paths in this function return don't initialize the
error code.  Return -ENODEV.

Fixes: d6389d3ccc13 ("perf/x86/amd/uncore: Refactor uncore management")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 arch/x86/events/amd/uncore.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c
index 9b444ce24108..a389828f378c 100644
--- a/arch/x86/events/amd/uncore.c
+++ b/arch/x86/events/amd/uncore.c
@@ -1009,7 +1009,8 @@ static struct amd_uncore uncores[UNCORE_TYPE_MAX] = {
 static int __init amd_uncore_init(void)
 {
 	struct amd_uncore *uncore;
-	int ret, i;
+	int ret = -ENODEV;
+	int i;
 
 	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD &&
 	    boot_cpu_data.x86_vendor != X86_VENDOR_HYGON)
-- 
2.39.2