linux-kernel - [PATCH] drm/nouveau/gem: fix err

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Message-ID: <20200813131208.GA20157@9b632a8c9f6b>
Date:   Thu, 13 Aug 2020 21:12:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     Markus Elfring <Markus.Elfring@....de>,
        nouveau@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        Ben Skeggs <bskeggs@...hat.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>
Cc:     kbuild-all@...ts.01.org, Julia Lawall <Julia.Lawall@...6.fr>,
        kernel-janitors@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Denis Efremov <efremov@...ux.com>
Subject: [PATCH] drm/nouveau/gem: fix err_cast.cocci warnings

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

drivers/gpu/drm/nouveau/nouveau_gem.c:589:9-16: WARNING: ERR_CAST can be used with mem


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

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

CC: Markus Elfring <elfring@...rs.sourceforge.net>
Signed-off-by: kernel test robot <lkp@...el.com>
---

url:    https://github.com/0day-ci/linux/commits/Markus-Elfring/drm-nouveau-gem-Use-vmemdup_user-rather-than-duplicating-its-implementation/20200812-150757
base:   git://anongit.freedesktop.org/drm-intel for-linux-next

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

--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -586,7 +586,7 @@ u_memcpya(uint64_t user, unsigned nmemb,
 	size *= nmemb;
 	mem = vmemdup_user(userptr, size);
 	if (IS_ERR(mem))
-		return ERR_PTR(PTR_ERR(mem));
+		return ERR_CAST(mem);
 
 	return mem;
 }