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driver core: use IS_ERR_OR_NULL() helper in device_create_groups_vargs()

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Use IS_ERR_OR_NULL() helper in device_create_groups_vargs() to simplify code
and improve readiblity. No functional change.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220914140753.3799982-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yang Yingliang 2022-09-14 22:07:53 +08:00 committed by Greg Kroah-Hartman
parent 21760e5c38
commit d70590d53a
1 changed files with 1 additions and 1 deletions
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2
drivers/base/core.c
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@ -4170,7 +4170,7 @@ device_create_groups_vargs(struct class *class, struct device *parent,
struct device *dev = NULL;
int retval = -ENODEV;
if (class == NULL || IS_ERR(class))
if (IS_ERR_OR_NULL(class))
goto error;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);