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misc: genwqe: fix return value check in genwqe_device_create()

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In case of error, the function device_create_with_groups()
returns ERR_PTR() and never returns NULL. The NULL test in
the return value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <[email protected]>
Acked-by: Frank Haverkamp <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Wei Yongjun 2014-01-07 16:56:35 +08:00 • committed by Greg Kroah-Hartman
commit 634608f27a
1 changed files with 2 additions and 2 deletions
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4
drivers/misc/genwqe/card_dev.c
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@ -1306,8 +1306,8 @@ int genwqe_device_create(struct genwqe_dev *cd)
genwqe_attribute_groups,
GENWQE_DEVNAME "%u_card",
cd->card_idx);
if (cd->dev == NULL) {
rc = -ENODEV;
if (IS_ERR(cd->dev)) {
rc = PTR_ERR(cd->dev);
goto err_cdev;
}