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drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:201:1-3: WARNING: PTR_ERR_OR_ZERO can be used

From kbuild test robot <fengguang.wu@intel.com>
Newsgroups linux.kernel
Subject drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:201:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Date 2015-10-14 12:20 +0200
Message-ID <qjrk7-3Pc-15@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5b5f1455272e23f4e7889cec37228802d8d01adf
commit: c4d0f8f6f8c8dc09cd32e7fdb31e3d1a65a0f8f1 drm/nouveau/gr/gk20a: use same initialization sequence as nvgpu
date:   7 weeks ago


coccinelle warnings: (new ones prefixed by >>)

>> drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:201:1-3: WARNING: PTR_ERR_OR_ZERO can be used

vim +201 drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c

   185		if (IS_ERR(priv->fuc_sw_ctx))
   186			return PTR_ERR(priv->fuc_sw_ctx);
   187	
   188		err = gf100_gr_ctor_fw(priv, "sw_bundle_init", &fuc);
   189		if (err)
   190			return err;
   191		priv->fuc_bundle = gk20a_gr_av_to_init(&fuc);
   192		gf100_gr_dtor_fw(&fuc);
   193		if (IS_ERR(priv->fuc_bundle))
   194			return PTR_ERR(priv->fuc_bundle);
   195	
   196		err = gf100_gr_ctor_fw(priv, "sw_method_init", &fuc);
   197		if (err)
   198			return err;
   199		priv->fuc_method = gk20a_gr_av_to_method(&fuc);
   200		gf100_gr_dtor_fw(&fuc);
 > 201		if (IS_ERR(priv->fuc_method))
   202			return PTR_ERR(priv->fuc_method);
   203	
   204		return 0;
   205	}
   206	
   207	static void
   208	gk20a_gr_dtor(struct nvkm_object *object)
   209	{

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:201:1-3: WARNING:  PTR_ERR_OR_ZERO can be used kbuild test robot <fengguang.wu@intel.com> - 2015-10-14 12:20 +0200

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