Re: [PATCH v2] dma_buf: remove dmabuf sysfs teardown before release

[Christian König]

Am 20.07.21 um 12:31 schrieb guangming....@mediatek.com:

From: Guangming Cao <guangming....@mediatek.com>

Dmabuf sysfs stat is used for dmabuf info track.
But these file maybe still in use after buffer released,
should clear it before buffer release.

Signed-off-by: Guangming Cao <guangming....@mediatek.com>

Reviewed and pushed to drm-misc-next.

Thanks,
Christian.

---
  drivers/dma-buf/dma-buf.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index b1a6db71c656..63d32261b63f 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -76,12 +76,12 @@ static void dma_buf_release(struct dentry *dentry)
         */
        BUG_ON(dmabuf->cb_shared.active || dmabuf->cb_excl.active);

+ dma_buf_stats_teardown(dmabuf);

        dmabuf->ops->release(dmabuf);

if (dmabuf->resv == (struct dma_resv *)&dmabuf[1])

                dma_resv_fini(dmabuf->resv);

- dma_buf_stats_teardown(dmabuf);

        module_put(dmabuf->owner);
        kfree(dmabuf->name);
        kfree(dmabuf);