From: Christophe JAILLET christophe.jaillet@wanadoo.fr
commit d887d6104adeb94d1b926936ea21f07367f0ff9f upstream.
If an error occurs after calling 'mtk_hsdma_init()', it must be undone by a corresponding call to 'mtk_hsdma_uninit()' as already done in the remove function.
Fixes: 0853c7a53eb3 ("staging: mt7621-dma: ralink: add rt2880 dma engine") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20201213153513.138723-1-christophe.jaillet@wanadoo... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/staging/mt7621-dma/mtk-hsdma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/staging/mt7621-dma/mtk-hsdma.c +++ b/drivers/staging/mt7621-dma/mtk-hsdma.c @@ -714,7 +714,7 @@ static int mtk_hsdma_probe(struct platfo ret = dma_async_device_register(dd); if (ret) { dev_err(&pdev->dev, "failed to register dma device\n"); - return ret; + goto err_uninit_hsdma; }
ret = of_dma_controller_register(pdev->dev.of_node, @@ -730,6 +730,8 @@ static int mtk_hsdma_probe(struct platfo
err_unregister: dma_async_device_unregister(dd); +err_uninit_hsdma: + mtk_hsdma_uninit(hsdma); return ret; }