From: Shravya Kumbham shravya.kumbham@xilinx.com
commit 99974aedbd73523969afb09f33c6e3047cd0ddae upstream.
dma_async_device_register() can return non-zero error code. Add condition to check the return value of dma_async_device_register function and handle the error path.
Addresses-Coverity: Event check_return. Fixes: 9cd4360de609 ("dma: Add Xilinx AXI Video Direct Memory Access Engine driver support") Signed-off-by: Shravya Kumbham shravya.kumbham@xilinx.com Signed-off-by: Radhey Shyam Pandey radhey.shyam.pandey@xilinx.com Link: https://lore.kernel.org/r/1608722462-29519-2-git-send-email-radhey.shyam.pan... Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/dma/xilinx/xilinx_dma.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -2637,7 +2637,11 @@ static int xilinx_dma_probe(struct platf }
/* Register the DMA engine with the core */ - dma_async_device_register(&xdev->common); + err = dma_async_device_register(&xdev->common); + if (err) { + dev_err(xdev->dev, "failed to register the dma device\n"); + goto error; + }
err = of_dma_controller_register(node, of_dma_xilinx_xlate, xdev);