tree d782fec514beb5dbb4281adc6d6ec28b7c5915da
parent 06e8935febe687e2a561707d4c7ca4245d261dbe
author Guennadi Liakhovetski <g.liakhovetski@gmx.de> 1302892247 +0000
committer Chris Ball <cjb@laptop.org> 1306295630 -0400

mmc: sh_mmcif: protect against a theoretical race

The MMC subsystem does not guarantee that host driver .request() and
.set_ios() callbacks are serialised. Such concurrent calls, however,
do not have to be meaningfully supported, drivers just have to make
sure to avoid any severe problems.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <damm@opensource.se>
Signed-off-by: Chris Ball <cjb@laptop.org>