[PATCH] mmc: usdhi6rol0: Fix a resource leak in the error handling path of the probe

From: Christophe JAILLET
Date: Thu Dec 17 2020 - 16:11:07 EST


A call to 'ausdhi6_dma_release()' to undo a previous call to
'usdhi6_dma_request()' is missing in the error handling path of the probe
function.

It is already present in the remove function.

Fixes: 75fa9ea6e3c0 ("mmc: add a driver for the Renesas usdhi6rol0 SD/SDIO host controller")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
drivers/mmc/host/usdhi6rol0.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c
index e2d5112d809d..615f3d008af1 100644
--- a/drivers/mmc/host/usdhi6rol0.c
+++ b/drivers/mmc/host/usdhi6rol0.c
@@ -1858,10 +1858,12 @@ static int usdhi6_probe(struct platform_device *pdev)

ret = mmc_add_host(mmc);
if (ret < 0)
- goto e_clk_off;
+ goto e_release_dma;

return 0;

+e_release_dma:
+ usdhi6_dma_release(host);
e_clk_off:
clk_disable_unprepare(host->clk);
e_free_mmc:
--
2.27.0