linux-kernel - [PATCH] net: fix err

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Date:   Sat, 3 Apr 2021 02:03:11 +0800
From:   kernel test robot <lkp@...el.com>
To:     Loic Poulain <loic.poulain@...aro.org>, gregkh@...uxfoundation.org,
        kuba@...nel.org, davem@...emloft.net
Cc:     kbuild-all@...ts.01.org, linux-arm-msm@...r.kernel.org,
        aleksander@...ksander.es, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, bjorn.andersson@...aro.org,
        manivannan.sadhasivam@...aro.org,
        Loic Poulain <loic.poulain@...aro.org>
Subject: [PATCH] net: fix err_cast.cocci warnings

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

drivers/net/wwan/wwan_core.c:208:9-16: WARNING: ERR_CAST can be used with wwandev


 Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

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

CC: Loic Poulain <loic.poulain@...aro.org>
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: kernel test robot <lkp@...el.com>
---

url:    https://github.com/0day-ci/linux/commits/Loic-Poulain/net-Add-a-WWAN-subsystem/20210402-220002
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git bd78980be1a68d14524c51c4b4170782fada622b

 wwan_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wwan/wwan_core.c
+++ b/drivers/net/wwan/wwan_core.c
@@ -205,7 +205,7 @@ struct wwan_port *wwan_create_port(struc
 	 */
 	wwandev = wwan_create_dev(parent);
 	if (IS_ERR(wwandev))
-		return ERR_PTR(PTR_ERR(wwandev));
+		return ERR_CAST(wwandev);
 
 	/* A port is exposed as character device, get a minor */
 	minor = ida_alloc_range(&minors, 0, WWAN_MAX_MINORS - 1, GFP_KERNEL);