AuxXxilium/linux_dsm_epyc7002
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4 Commits

Author SHA1 Message Date
Colin Ian King
0788611c9a dmaengine: dw-axi-dmac: fix null dereference when pointer first is null 
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: 1fe20f1b84 ("dmaengine: Introduce DW AXI DMAC driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2019-05-21 14:25:52 +05:30
Huang Shijie
c88c2d46e2 dmaengine: dw-axi-dmac: use dmaenginem_async_device_register to simplify the 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>
 2018-08-29 21:43:17 +05:30
Colin Ian King
6a28ba26f8 dmaengine: dw-axi-dmac: fix spelling mistake: "catched" -> "caught" 
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>
 2018-03-27 17:44:39 +05:30
Eugeniy Paltsev
1fe20f1b84 dmaengine: Introduce DW AXI DMAC driver 
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>
 2018-03-19 13:38:16 +05:30