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From:   Miles Chen <miles.chen@mediatek.com>
To:     Chun-Kuang Hu <chunkuang.hu@kernel.org>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        CK Hu <ck.hu@mediatek.com>
CC:     <linux-kernel@vger.kernel.org>,
        Miles Chen <miles.chen@mediatek.com>,
        <dri-devel@lists.freedesktop.org>,
        <linux-mediatek@lists.infradead.org>,
        <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v2] drm/mediatek: stop using 0 as NULL pointer
Date:   Wed, 11 Jan 2023 10:44:41 +0800
Message-ID: <20230111024443.24559-1-miles.chen@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Use NULL for NULL pointer to fix the following sparse warning:
drivers/gpu/drm/mediatek/mtk_drm_gem.c:265:27: sparse: warning: Using plain integer as NULL pointer

Fixes: 3df64d7b0a4f ("drm/mediatek: Implement gem prime vmap/vunmap function")
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

---

Change since v1:
Add Fixes tag

---
 drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
index 47e96b0289f9..06aadd5e7f5b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
@@ -262,6 +262,6 @@ void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
 		return;
 
 	vunmap(vaddr);
-	mtk_gem->kvaddr = 0;
+	mtk_gem->kvaddr = NULL;
 	kfree(mtk_gem->pages);
 }
-- 
2.18.0