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authorJohan Hovold2013-03-13 17:11:59 +0100
committerChris Ball2013-03-22 12:57:22 -0400
commit91cf54feecf815bec0b6a8d6d9dbd0e219f2f2cc (patch)
tree97bf59680c63526b921a0e069eb4caa1ec04317f /drivers
parent0f6e73d0abde95973354b4921b4d08acf01a8b5c (diff)
mmc: at91/avr32/atmel-mci: fix DMA-channel leak on module unload
Fix regression introduced by commit 796211b7953 ("mmc: atmel-mci: add pdc support and runtime capabilities detection") which removed the need for CONFIG_MMC_ATMELMCI_DMA but kept the Kconfig-entry as well as the compile guards around dma_release_channel() in remove(). Consequently, DMA is always enabled (if supported), but the DMA-channel is not released on module unload unless the DMA-config option is selected. Remove the no longer used CONFIG_MMC_ATMELMCI_DMA option completely. Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/Kconfig10
-rw-r--r--drivers/mmc/host/atmel-mci.c2
2 files changed, 0 insertions, 12 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index d88219e1d86e..9c581c2ed349 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -300,16 +300,6 @@ config MMC_ATMELMCI
If unsure, say N.
-config MMC_ATMELMCI_DMA
- bool "Atmel MCI DMA support"
- depends on MMC_ATMELMCI && (AVR32 || ARCH_AT91SAM9G45) && DMA_ENGINE
- help
- Say Y here to have the Atmel MCI driver use a DMA engine to
- do data transfers and thus increase the throughput and
- reduce the CPU utilization.
-
- If unsure, say N.
-
config MMC_MSM
tristate "Qualcomm SDCC Controller Support"
depends on MMC && ARCH_MSM
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 722af1de7967..10f8b7358e57 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -2487,10 +2487,8 @@ static int __exit atmci_remove(struct platform_device *pdev)
atmci_readl(host, ATMCI_SR);
clk_disable(host->mck);
-#ifdef CONFIG_MMC_ATMELMCI_DMA
if (host->dma.chan)
dma_release_channel(host->dma.chan);
-#endif
free_irq(platform_get_irq(pdev, 0), host);
iounmap(host->regs);