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path: root/drivers/dma/dw-axi-dmac
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2019-06-08Merge tag 'dmaengine-fix-5.2-rc4' of ↵Linus Torvalds
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: - jz4780 transfer fix for acking descriptors early - fsl-qdma: clean registers on error - dw-axi-dmac: null pointer dereference fix - mediatek-cqdma: fix sleeping in atomic context - tegra210-adma: fix bunch os issues like crashing in driver probe, channel FIFO configuration etc. - sprd: Fixes for possible crash on descriptor status, block length overflow. For 2-stage transfer fix incorrect start, configuration and interrupt handling. * tag 'dmaengine-fix-5.2-rc4' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: sprd: Add interrupt support for 2-stage transfer dmaengine: sprd: Fix the right place to configure 2-stage transfer dmaengine: sprd: Fix block length overflow dmaengine: sprd: Fix the incorrect start for 2-stage destination channels dmaengine: sprd: Add validation of current descriptor in irq handler dmaengine: sprd: Fix the possible crash when getting descriptor status dmaengine: tegra210-adma: Fix spelling dmaengine: tegra210-adma: Fix channel FIFO configuration dmaengine: tegra210-adma: Fix crash during probe dmaengine: mediatek-cqdma: sleeping in atomic context dmaengine: dw-axi-dmac: fix null dereference when pointer first is null dmaengine: fsl-qdma: Add improvement dmaengine: jz4780: Fix transfers being ACKed too soon
2019-05-21dmaengine: dw-axi-dmac: fix null dereference when pointer first is nullColin Ian King
In the unlikely event that axi_desc_get returns a null desc in the very first iteration of the while-loop the error exit path ends up calling axi_desc_put on a null pointer 'first' and this causes a null pointer dereference. Fix this by adding a null check on pointer 'first' before calling axi_desc_put. Addresses-Coverity: ("Explicit null dereference") Fixes: 1fe20f1b8454 ("dmaengine: Introduce DW AXI DMAC driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-08dmaengine: dw-axi-dmac: Fix trivia typoAndy Shevchenko
Field name ststus_hi should be spelled as status_hi. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-08-29dmaengine: dw-axi-dmac: use dmaenginem_async_device_register to simplify the ↵Huang Shijie
code Use dmaenginem_async_device_register to simplify the code: remove dma_async_device_unregister. Signed-off-by: Huang Shijie <sjhuang@iluvatar.ai> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-03-27dmaengine: dw-axi-dmac: fix spelling mistake: "catched" -> "caught"Colin Ian King
Trivial fix to spelling mistake in dev_err error message text Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2018-03-19dmaengine: Introduce DW AXI DMAC driverEugeniy Paltsev
This patch adds support for the DW AXI DMAC controller. DW AXI DMAC is a part of HSDK development board from Synopsys. In this driver implementation only DMA_MEMCPY transfers are supported. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>