perf/arm_dmc620_pmu: Fix error return code in dmc620_pmu_device_probe()

[ Upstream commit c8e3866836528a4ba3b0535834f03768d74f7d8e ]

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@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210312080421.277562-1-weiyongjun1@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/perf/arm_dmc620_pmu.c b/drivers/perf/arm_dmc620_pmu.c
index 004930eb4bbb6d01abe367e10969b4d0da565d48..b50b47f1a0d92b48bc788a1214c436044500f0f9 100644 (file)
--- 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;
        }