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dca: Use PTR_ERR_OR_ZERO() to simplify code

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The function PTR_ERR_OR_ZERO() contains the check of
IS_ERR() and the return of PTR_ERR() or zero.

Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20200507111224.4176-1-tangbin@cmss.chinamobile.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tang Bin 2020-05-07 19:12:24 +08:00 committed by Greg Kroah-Hartman
parent cafa1a5b22
commit 0548745fa3
1 changed files with 1 additions and 3 deletions
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4
drivers/dca/dca-sysfs.c
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@ -24,9 +24,7 @@ int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot)
cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), NULL,
"requester%d", req_count++);
if (IS_ERR(cd))
return PTR_ERR(cd);
return 0;
return PTR_ERR_OR_ZERO(cd);
}
void dca_sysfs_remove_req(struct dca_provider *dca, int slot)