diff options
Diffstat (limited to 'drivers/accel/habanalabs/common/memory.c')
| -rw-r--r-- | drivers/accel/habanalabs/common/memory.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/accel/habanalabs/common/memory.c b/drivers/accel/habanalabs/common/memory.c index fd333dd2835e..7fd8e8f87682 100644 --- a/drivers/accel/habanalabs/common/memory.c +++ b/drivers/accel/habanalabs/common/memory.c @@ -1835,6 +1835,10 @@ static void hl_release_dmabuf(struct dma_buf *dmabuf) atomic_dec(&ctx->hdev->dmabuf_export_cnt); hl_ctx_put(ctx); + + /* Paired with get_file() in export_dmabuf() */ + fput(ctx->hpriv->filp); + kfree(hl_dmabuf); } @@ -1875,6 +1879,12 @@ static int export_dmabuf(struct hl_ctx *ctx, hl_ctx_get(hl_dmabuf->ctx); atomic_inc(&ctx->hdev->dmabuf_export_cnt); + /* Get compute device file to enforce release order, such that all exported dma-buf will be + * released first and only then the compute device. + * Paired with fput() in hl_release_dmabuf(). + */ + get_file(ctx->hpriv->filp); + *dmabuf_fd = fd; return 0; |