linux-kernel - [PATCH] perf/dwc_pcie: Fix use of uninitialized variable

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Message-ID: <20250923213136.8107-1-ilkka@os.amperecomputing.com>
Date: Tue, 23 Sep 2025 14:31:36 -0700
From: Ilkka Koskinen <ilkka@...amperecomputing.com>
To: Will Deacon <will@...nel.org>,
	Shuai Xue <xueshuai@...ux.alibaba.com>,
	Jing Zhang <renyu.zj@...ux.alibaba.com>,
	dan.carpenter@...aro.org
Cc: Mark Rutland <mark.rutland@....com>,
	Ilkka Koskinen <ilkka@...amperecomputing.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] perf/dwc_pcie: Fix use of uninitialized variable

Fix use of uninitialized variable in group validation code.

Fixes: 71396cfac97d ("perf/dwc_pcie: Support counting multiple lane events in parallel")
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <error27@...il.com>
Closes: https://lore.kernel.org/r/202509231223.gZsX6Eio-lkp@intel.com/
Signed-off-by: Ilkka Koskinen <ilkka@...amperecomputing.com>
---
 drivers/perf/dwc_pcie_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/dwc_pcie_pmu.c b/drivers/perf/dwc_pcie_pmu.c
index d77f767cde89..22f73ac894e9 100644
--- a/drivers/perf/dwc_pcie_pmu.c
+++ b/drivers/perf/dwc_pcie_pmu.c
@@ -402,7 +402,7 @@ static int dwc_pcie_pmu_validate_group(struct perf_event *event)
 {
 	struct perf_event *sibling, *leader = event->group_leader;
 	DECLARE_BITMAP(val_lane_events, 2 * DWC_PCIE_LANE_MAX_EVENTS_PER_GROUP);
-	bool time_event;
+	bool time_event = false;
 	int type;
 
 	type = DWC_PCIE_EVENT_TYPE(leader);
-- 
2.51.0