2019-09-19 14:43:19 +00:00
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From 73623c76c8bc8c41a4afefc1eee84dfc5979d652 Mon Sep 17 00:00:00 2001
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2019-07-09 18:32:28 +00:00
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Wed, 12 Jun 2019 20:45:17 +0100
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2019-12-23 12:42:55 +00:00
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Subject: [PATCH] bcm2835-sdhost: Fix DMA channel leak on error/remove
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2019-07-09 18:32:28 +00:00
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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drivers/mmc/host/bcm2835-sdhost.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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--- a/drivers/mmc/host/bcm2835-sdhost.c
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+++ b/drivers/mmc/host/bcm2835-sdhost.c
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@@ -2154,6 +2154,8 @@ static int bcm2835_sdhost_probe(struct p
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err:
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pr_debug("bcm2835_sdhost_probe -> err %d\n", ret);
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+ if (host->dma_chan_rxtx)
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+ dma_release_channel(host->dma_chan_rxtx);
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mmc_free_host(mmc);
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return ret;
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@@ -2174,7 +2176,8 @@ static int bcm2835_sdhost_remove(struct
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del_timer_sync(&host->timer);
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tasklet_kill(&host->finish_tasklet);
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-
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+ if (host->dma_chan_rxtx)
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+ dma_release_channel(host->dma_chan_rxtx);
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mmc_free_host(host->mmc);
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platform_set_drvdata(pdev, NULL);
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