The error path when atmci_configure_dma() set dma fails in atmci driver
does not correctly disable the clock.
Add the missing clk_disable_unprepare() to the error path for pair with
clk_prepare_enable().
Fixes: 467e081d23e6 ("mmc: atmel-mci: use probe deferring if dma controller is not ready yet")
Signed-off-by: Gu Bowen <gubowen5@xxxxxxxxxx>
---
drivers/mmc/host/atmel-mci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index fc360902729d..24fffc702a94 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -2499,8 +2499,10 @@ static int atmci_probe(struct platform_device *pdev)
/* Get MCI capabilities and set operations according to it */
atmci_get_cap(host);
ret = atmci_configure_dma(host);
- if (ret == -EPROBE_DEFER)
+ if (ret == -EPROBE_DEFER) {
+ clk_disable_unprepare(host->mck);
goto err_dma_probe_defer;
+ }
if (ret == 0) {
host->prepare_data = &atmci_prepare_data_dma;
host->submit_data = &atmci_submit_data_dma;
--
2.25.1
