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(parent: 568f7f0) | patch
dmaengine: at_hdmac: fix race while monitoring channel status
authorNicolas Ferre <nicolas.ferre@atmel.com>
Wed, 12 Jan 2011 14:39:10 +0000 (15:39 +0100)
committerDan Williams <dan.j.williams@intel.com>
Sat, 15 Jan 2011 00:54:44 +0000 (16:54 -0800)
commitdda36f9821321edf65d69da5c0807df7e73d26fc
tree2a629da4c1650c11bb0b1783317fbda0a1799ec6tree | snapshot (tar.gz zip)
parent568f7f0c2e597671d3e646e0b85c95c4a5756fefcommit | diff
dmaengine: at_hdmac: fix race while monitoring channel status

We were reading channel status then taking a lock. This lead to a race because
this lock may delay us and then make this channel not idle anymore.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
drivers/dma/at_hdmac.c diff | blob | blame | history