* [PATCH] fpga: dfl: fme: Add NULL pointer check in fme_perf_pmu_register()
@ 2025-03-11 1:16 Chenyuan Yang
0 siblings, 0 replies; only message in thread
From: Chenyuan Yang @ 2025-03-11 1:16 UTC (permalink / raw)
To: hao.wu, trix, mdf, yilun.xu, richardcochran
Cc: linux-fpga, linux-kernel, Chenyuan Yang
name, returned by devm_kasprintf(), could be NULL.
A pointer check is added to prevent potential NULL pointer dereference.
This is similar to the fix in commit 3027e7b15b02
("ice: Fix some null pointer dereference issues in ice_ptp.c").
This issue is found by our static analysis tool.
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
---
drivers/fpga/dfl-fme-perf.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/fpga/dfl-fme-perf.c b/drivers/fpga/dfl-fme-perf.c
index 7422d2bc6f37..db56d52411ef 100644
--- a/drivers/fpga/dfl-fme-perf.c
+++ b/drivers/fpga/dfl-fme-perf.c
@@ -925,6 +925,8 @@ static int fme_perf_pmu_register(struct platform_device *pdev,
PERF_PMU_CAP_NO_EXCLUDE;
name = devm_kasprintf(priv->dev, GFP_KERNEL, "dfl_fme%d", pdev->id);
+ if (!name)
+ return -ENOMEM;
ret = perf_pmu_register(pmu, name, -1);
if (ret)
--
2.34.1
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