[PATCH v4 1/4] drm/mediatek: Remove freeing not dynamic allocated memory

Jason-JH.Lin jason-jh.lin at mediatek.com
Fri Jul 14 02:49:05 PDT 2023


Fixing the coverity issue of:
mtk_drm_cmdq_pkt_destroy frees address of mtk_crtc->cmdq_handle

So remove the free function.

Fixes: 7627122fd1c0 ("drm/mediatek: Add cmdq_handle in mtk_crtc")
Signed-off-by: Jason-JH.Lin <jason-jh.lin at mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
Reviewed-by: CK Hu <ck.hu at mediatek.com>
Reviewed-by: Alexandre Mergnat <amergnat at baylibre.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index d40142842f85..8d44f3df116f 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -116,10 +116,9 @@ static int mtk_drm_cmdq_pkt_create(struct cmdq_client *client, struct cmdq_pkt *
 	dma_addr_t dma_addr;
 
 	pkt->va_base = kzalloc(size, GFP_KERNEL);
-	if (!pkt->va_base) {
-		kfree(pkt);
+	if (!pkt->va_base)
 		return -ENOMEM;
-	}
+
 	pkt->buf_size = size;
 	pkt->cl = (void *)client;
 
@@ -129,7 +128,6 @@ static int mtk_drm_cmdq_pkt_create(struct cmdq_client *client, struct cmdq_pkt *
 	if (dma_mapping_error(dev, dma_addr)) {
 		dev_err(dev, "dma map failed, size=%u\n", (u32)(u64)size);
 		kfree(pkt->va_base);
-		kfree(pkt);
 		return -ENOMEM;
 	}
 
@@ -145,7 +143,6 @@ static void mtk_drm_cmdq_pkt_destroy(struct cmdq_pkt *pkt)
 	dma_unmap_single(client->chan->mbox->dev, pkt->pa_base, pkt->buf_size,
 			 DMA_TO_DEVICE);
 	kfree(pkt->va_base);
-	kfree(pkt);
 }
 #endif
 
-- 
2.18.0




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