linux-kernel - [PATCH] drm/nouveau/mmu: fix odd_ptr

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Message-Id: <20171130195354.14135-1-christoph@boehmwalder.at>
Date:   Thu, 30 Nov 2017 20:53:54 +0100
From:   Christoph Böhmwalder <christoph@...hmwalder.at>
To:     bskeggs@...hat.com, airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Christoph Böhmwalder <christoph@...hmwalder.at>
Subject: [PATCH] drm/nouveau/mmu: fix odd_ptr_err.cocci warnings

The kbuild test bot complained about a new coccinelle warning nearby,
which sparked a discussion about the assignment to 'memory' inside of
the conditional expression.  See Link below for the original post.

Fix the assignment to silence the coccinelle warning and also make the
code look a little nicer.

Link: https://lists.freedesktop.org/archives/nouveau/2017-November/029242.html
Signed-off-by: Christoph Böhmwalder <christoph@...hmwalder.at>
---
 drm/nouveau/nvkm/subdev/mmu/uvmm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drm/nouveau/nvkm/subdev/mmu/uvmm.c b/drm/nouveau/nvkm/subdev/mmu/uvmm.c
index fa81d0c1..37b201b9 100644
--- a/drm/nouveau/nvkm/subdev/mmu/uvmm.c
+++ b/drm/nouveau/nvkm/subdev/mmu/uvmm.c
@@ -106,7 +106,8 @@ nvkm_uvmm_mthd_map(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
 	} else
 		return ret;
 
-	if (IS_ERR((memory = nvkm_umem_search(client, handle)))) {
+	memory = nvkm_umem_search(client, handle);
+	if (IS_ERR(memory)) {
 		VMM_DEBUG(vmm, "memory %016llx %ld\n", handle, PTR_ERR(memory));
 		return PTR_ERR(memory);
 	}
-- 
2.13.6