5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chen Ni <nichen@xxxxxxxxxxx>
[ Upstream commit 6fd4ebfc4d61e3097b595ab2725d513e3bbd6739 ]
Use devm_kstrdup() instead of kstrdup() and check its return value to
avoid memory leak.
Fixes: 49bddc73d15c ("libnvdimm/of_pmem: Provide a unique name for bus provider")
Signed-off-by: Chen Ni <nichen@xxxxxxxxxxx>
Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Reviewed-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/nvdimm/of_pmem.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -42,7 +42,13 @@ static int of_pmem_region_probe(struct p
return -ENOMEM;
priv->bus_desc.attr_groups = bus_attr_groups;
- priv->bus_desc.provider_name = kstrdup(pdev->name, GFP_KERNEL);
+ priv->bus_desc.provider_name = devm_kstrdup(&pdev->dev, pdev->name,
+ GFP_KERNEL);
+ if (!priv->bus_desc.provider_name) {
+ kfree(priv);
+ return -ENOMEM;
+ }
+
priv->bus_desc.module = THIS_MODULE;
priv->bus_desc.of_node = np;
