[PATCH -next] PCI: endpoint: use kmemdup_nul() in pci_epf_create()

[Chen Zhou]

It is more efficient to use kmemdup_nul() if the size is known exactly.

The doc in kernel:
"Note: Use kmemdup_nul() instead if the size is known exactly."

Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx>
---
 drivers/pci/endpoint/pci-epf-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index 244e00f48c5c..f035d2ebcae5 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -252,7 +252,7 @@ struct pci_epf *pci_epf_create(const char *name)
 		return ERR_PTR(-ENOMEM);
 
 	len = strchrnul(name, '.') - name;
-	epf->name = kstrndup(name, len, GFP_KERNEL);
+	epf->name = kmemdup_nul(name, len, GFP_KERNEL);
 	if (!epf->name) {
 		kfree(epf);
 		return ERR_PTR(-ENOMEM);
-- 
2.20.1