[PATCH] fpga: dfl: fme: Add NULL pointer check in fme_perf_pmu_register()

[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@xxxxxxxxx>
---
 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