[PATCH] dca: Use PTR_ERR_OR_ZERO() to simplify code

[Tang Bin]

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 <zhangshen...@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tang...@cmss.chinamobile.com>
---
 drivers/dca/dca-sysfs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c
index eb25627b0..21ebd0af2 100644
--- a/drivers/dca/dca-sysfs.c
+++ b/drivers/dca/dca-sysfs.c
@@ -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)
-- 
2.20.1.windows.1