linux-kernel - [PATCH -next] perf/arm_dmc620_pmu: Fix error return code in dmc620_pmu_device

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Date:   Fri, 12 Mar 2021 08:04:21 +0000
From:   'Wei Yongjun <weiyongjun1@...wei.com>
To:     <weiyongjun1@...wei.com>, Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Tuan Phan <tuanphan@...amperecomputing.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>,
        Hulk Robot <hulkci@...wei.com>
Subject: [PATCH -next] perf/arm_dmc620_pmu: Fix error return code in dmc620_pmu_device_probe()

From: Wei Yongjun <weiyongjun1@...wei.com>

Fix to return negative error code -ENOMEM from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 53c218da220c ("driver/perf: Add PMU driver for the ARM DMC-620 memory controller")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/perf/arm_dmc620_pmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/perf/arm_dmc620_pmu.c b/drivers/perf/arm_dmc620_pmu.c
index 66ad5b3ece19..f2a85500258d 100644
--- a/drivers/perf/arm_dmc620_pmu.c
+++ b/drivers/perf/arm_dmc620_pmu.c
@@ -681,6 +681,7 @@ static int dmc620_pmu_device_probe(struct platform_device *pdev)
 	if (!name) {
 		dev_err(&pdev->dev,
 			  "Create name failed, PMU @%pa\n", &res->start);
+		ret = -ENOMEM;
 		goto out_teardown_dev;
 	}