linux-kernel - [PATCH] drm: xlnx: pl_disp: fix odd_ptr

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Date:   Tue, 10 Apr 2018 07:49:40 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Hyun Kwon <hyun.kwon@...inx.com>
cc:     Michal Simek <monstr@...str.eu>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kbuild-all@...org
Subject: [PATCH] drm: xlnx: pl_disp: fix odd_ptr_err.cocci warnings

From: Fengguang Wu <fengguang.wu@...el.com>

 PTR_ERR should normally access the value just tested by IS_ERR

Generated by: scripts/coccinelle/tests/odd_ptr_err.cocci

Fixes: 742243a44a73 ("drm: xlnx: pl_disp: Use xlnx pipeline calls")
CC: Hyun Kwon <hyun.kwon@...inx.com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
Signed-off-by: Julia Lawall <julia.lawall@...6.fr>
---

tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v4.14
head:   fe04d2ee0dfea6b5fdbb04f4f6dbcaa13bfd2fda
commit: 742243a44a738b165f8da5cbdb6662139e85a5c5 [651/842] drm: xlnx:
pl_disp: Use xlnx pipeline calls


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

--- a/drivers/gpu/drm/xlnx/xlnx_pl_disp.c
+++ b/drivers/gpu/drm/xlnx/xlnx_pl_disp.c
@@ -482,7 +482,7 @@ static int xlnx_pl_disp_probe(struct pla

 	xlnx_pl_disp->master = xlnx_drm_pipeline_init(pdev);
 	if (IS_ERR(xlnx_pl_disp->master)) {
-		ret = PTR_ERR(xlnx_pl_disp->dev);
+		ret = PTR_ERR(xlnx_pl_disp->master);
 		dev_err(dev, "failed to initialize the drm pipeline\n");
 		goto err_component;
 	}