From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
[ Upstream commit 5d15cbf63515c6183d2ed7c9dd0586b4db23ffb1 ]
'dma_request_chan()' calls should be balanced by a corresponding
'dma_release_channel()' call.
Add the missing call both in the error handling path of the probe function
and in the remove function.
Fixes: ff65ffe46d28 ("mmc: Add Actions Semi Owl SoCs SD/MMC driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201209194202.54099-1-christophe.jaillet@xxxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/mmc/host/owl-mmc.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/owl-mmc.c b/drivers/mmc/host/owl-mmc.c
index ccf214a89eda9..3d4abf175b1d8 100644
--- a/drivers/mmc/host/owl-mmc.c
+++ b/drivers/mmc/host/owl-mmc.c
@@ -641,7 +641,7 @@ static int owl_mmc_probe(struct platform_device *pdev)
owl_host->irq = platform_get_irq(pdev, 0);
if (owl_host->irq < 0) {
ret = -EINVAL;
- goto err_free_host;
+ goto err_release_channel;
}
ret = devm_request_irq(&pdev->dev, owl_host->irq, owl_irq_handler,
@@ -649,19 +649,21 @@ static int owl_mmc_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "Failed to request irq %d\n",
owl_host->irq);
- goto err_free_host;
+ goto err_release_channel;
}
ret = mmc_add_host(mmc);
if (ret) {
dev_err(&pdev->dev, "Failed to add host\n");
- goto err_free_host;
+ goto err_release_channel;
}
dev_dbg(&pdev->dev, "Owl MMC Controller Initialized\n");
return 0;
+err_release_channel:
+ dma_release_channel(owl_host->dma);
err_free_host:
mmc_free_host(mmc);
@@ -675,6 +677,7 @@ static int owl_mmc_remove(struct platform_device *pdev)
mmc_remove_host(mmc);
disable_irq(owl_host->irq);
+ dma_release_channel(owl_host->dma);
mmc_free_host(mmc);
return 0;
--
2.27.0
