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powerpc/powernv: add NULL check after kzalloc

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Fixes coccicheck warning:

./arch/powerpc/platforms/powernv/opal.c:813:1-5:
	alloc with no test, possible model on line 814

Add NULL check after kzalloc.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200509020838.121660-1-chenzhou10@huawei.com
This commit is contained in:
Chen Zhou 2020-05-09 10:08:38 +08:00 committed by Michael Ellerman
parent aa3bc365ee
commit ceffa63acc
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/platforms/powernv/opal.c
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@ -811,6 +811,10 @@ 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;