Re: [PATCH] media: rga: fix possible memory leak in rga_probe

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Gentle ping.

On 2022/3/24 16:37, Hangyu Hua wrote:
rga->m2m_dev needs to be freed when rga_probe fails.

Signed-off-by: Hangyu Hua <hbh25y@xxxxxxxxx>
---
  drivers/media/platform/rockchip/rga/rga.c | 6 ++++--
  1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index 4de5e8d2b261..c2ce4fdcdb7f 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -865,7 +865,7 @@ static int rga_probe(struct platform_device *pdev)
ret = pm_runtime_resume_and_get(rga->dev);
  	if (ret < 0)
-		goto rel_vdev;
+		goto rel_m2m;
rga->version.major = (rga_read(rga, RGA_VERSION_INFO) >> 24) & 0xFF;
  	rga->version.minor = (rga_read(rga, RGA_VERSION_INFO) >> 20) & 0x0F;
@@ -881,7 +881,7 @@ static int rga_probe(struct platform_device *pdev)
  					   DMA_ATTR_WRITE_COMBINE);
  	if (!rga->cmdbuf_virt) {
  		ret = -ENOMEM;
-		goto rel_vdev;
+		goto rel_m2m;
  	}
rga->src_mmu_pages =
@@ -918,6 +918,8 @@ static int rga_probe(struct platform_device *pdev)
  free_dma:
  	dma_free_attrs(rga->dev, RGA_CMDBUF_SIZE, rga->cmdbuf_virt,
  		       rga->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE);
+rel_m2m:
+	v4l2_m2m_release(rga->m2m_dev);
  rel_vdev:
  	video_device_release(vfd);
  unreg_v4l2_dev:



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