[PATCH] powerpc/powernv: add NULL check after kzalloc in opal_add_one_export

[Qiujun Huang]

Here needs a NULL check.

Issue found by coccinelle.

Signed-off-by: Qiujun Huang <hqjagain@xxxxxxxxx>
---
 arch/powerpc/platforms/powernv/opal.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2b3dfd0b6cdd..09443ae3a86e 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -811,6 +811,11 @@ static int opal_add_one_export(struct kobject *parent, const char *export_name,
 		goto out;
 
 	attr = kzalloc(sizeof(*attr), GFP_KERNEL);
+	if (!attr) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
 	name = kstrdup(export_name, GFP_KERNEL);
 	if (!name) {
 		rc = -ENOMEM;
-- 
2.17.1