OSDN Git Service

(root) / uclinux-h8 / linux.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 33e69c7) | patch
mmc: sh-mmcif: reset DMA completion immediately before starting DMA
authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Wed, 12 Dec 2012 14:38:16 +0000 (15:38 +0100)
committerChris Ball <cjb@laptop.org>
Mon, 28 Jan 2013 11:51:33 +0000 (06:51 -0500)
commit1fcfebfe49f0fe3c3311decdcb3ad411d48feb59
treec8d26c2d5e1be1cce8d3ca0c4c5d6a5854b48040tree | snapshot
parent33e69c7b4821818fb758c5437a7bc50d06f37ddecommit | diff
mmc: sh-mmcif: reset DMA completion immediately before starting DMA

DMA completion can be signalled from the DMA callback and from the error
handler. If both are called, the completion struct can enter an
inconsistent state. To prevent this move completion initialisation
immediately before activating DMA.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/host/sh_mmcif.c diff | blob | history
About OSDN
Find Software
Develop Software
Help