linux-kernel - [PATCH] netdevsim: fix ptr

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Message-ID: <20200204142200.hinq3pju772kmwyu@f53c9c00458a>
Date:   Tue, 4 Feb 2020 22:22:02 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Taehee Yoo <ap420073@...il.com>
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org
Subject: [PATCH] netdevsim: fix ptr_ret.cocci warnings

From: kbuild test robot <lkp@...el.com>

drivers/net/netdevsim/dev.c:937:1-3: WARNING: PTR_ERR_OR_ZERO can be used


 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

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

Fixes: 6556ff32f12d ("netdevsim: use IS_ERR instead of IS_ERR_OR_NULL for debugfs")
CC: Taehee Yoo <ap420073@...il.com>
Signed-off-by: kbuild test robot <lkp@...el.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git master
head:   83b43045308ea0600099830292955f18818f8d5e
commit: 6556ff32f12d0a5380dd2fa6bbaa01373925a7d1 [40/48] netdevsim: use IS_ERR instead of IS_ERR_OR_NULL for debugfs

 dev.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -934,9 +934,7 @@ int nsim_dev_port_del(struct nsim_bus_de
 int nsim_dev_init(void)
 {
 	nsim_dev_ddir = debugfs_create_dir(DRV_NAME, NULL);
-	if (IS_ERR(nsim_dev_ddir))
-		return PTR_ERR(nsim_dev_ddir);
-	return 0;
+	return PTR_ERR_OR_ZERO(nsim_dev_ddir);
 }
 
 void nsim_dev_exit(void)