mmc: mxs-mmc: Fix a resource leak in an error handling path in 'mxs_mmc_probe()'

[ Upstream commit 0bb7e560f821c7770973a94e346654c4bdccd42c ]

If 'mmc_of_parse()' fails, we must undo the previous 'dma_request_chan()'
call.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20201208203527.49262-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index add1e70195ea6a2c7111f768c5865d15b17f085e..7125687faf76a05023ec1fa3a73dffd5db6b1bf9 100644 (file)
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -659,7 +659,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 
        ret = mmc_of_parse(mmc);
        if (ret)
-               goto out_clk_disable;
+               goto out_free_dma;
 
        mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;