linux-kernel - [PATCH] vcodec: mediatek: fix odd_ptr

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Date:   Tue, 6 Sep 2016 22:51:15 +0800 (SGT)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Tiffany Lin <tiffany.lin@...iatek.com>
cc:     Hans Verkuil <hverkuil@...all.nl>,
        Mauro Carvalho Chehab <m.chehab@...sung.com>,
        linux-media@...r.kernel.org,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kbuild-all@...org
Subject: [PATCH] vcodec: mediatek: fix odd_ptr_err.cocci warnings

PTR_ERR should access the value just tested by IS_ERR

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

CC: Tiffany Lin <tiffany.lin@...iatek.com>
Signed-off-by: Julia Lawall <julia.lawall@...6.fr>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

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

--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -255,7 +255,7 @@ static int mtk_vcodec_probe(struct platf
 		}
 		dev->reg_base[i] = devm_ioremap_resource(&pdev->dev, res);
 		if (IS_ERR((__force void *)dev->reg_base[i])) {
-			ret = PTR_ERR((__force void *)dev->reg_base);
+			ret = PTR_ERR((__force void *)dev->reg_base[i]);
 			goto err_res;
 		}
 		mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]);