[PATCH] drivers/net: Fix ptr_ret.cocci warnings.

[Tonghao Zhang]

we can use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
1. drivers/net/appletalk/ipddp.c
2. drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Tonghao Zhang <xiangxia.m....@gmail.com>
---
 drivers/net/appletalk/ipddp.c                            | 4 +---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c | 5 +----
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/appletalk/ipddp.c b/drivers/net/appletalk/ipddp.c
index a306de4..9375cef 100644
--- a/drivers/net/appletalk/ipddp.c
+++ b/drivers/net/appletalk/ipddp.c
@@ -311,9 +311,7 @@ static int ipddp_ioctl(struct net_device *dev, struct ifreq 
*ifr, int cmd)
 static int __init ipddp_init_module(void)
 {
        dev_ipddp = ipddp_init();
-        if (IS_ERR(dev_ipddp))
-                return PTR_ERR(dev_ipddp);
-       return 0;
+       return PTR_ERR_OR_ZERO(dev_ipddp);
 }
 
 static void __exit ipddp_cleanup_module(void)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c 
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
index 1447a83..2d3e5e2 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
@@ -78,10 +78,7 @@ int brcmf_debug_attach(struct brcmf_pub *drvr)
                return -ENODEV;
 
        drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
-       if (IS_ERR(drvr->dbgfs_dir))
-               return PTR_ERR(drvr->dbgfs_dir);
-
-       return 0;
+       return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
 }
 
 void brcmf_debug_detach(struct brcmf_pub *drvr)
-- 
1.8.3.1