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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2008-02-24 08:44:19 +0300
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-02-24 09:40:57 +0300
commite2396f1e4ecd438a15fa653a028b93e95013caa3 (patch)
tree8cc11b28b64fbf3a7a22d1636467d35174092e27 /drivers/edac
parent8de3ef25a1fcd28d270b69417a41b424826d4f89 (diff)
downloadlinux-e2396f1e4ecd438a15fa653a028b93e95013caa3.tar.xz
[SCSI] aic94xx: fix TMF ascb handling to prevent sequencer panic
This is a particularly nasty bug. The problem is that if any internal ascb times out, currently we free it even though it's pending at the sequencer. This results in the sequencer getting terminally confused and the error message: BUG:sequencer:dl:no ascb Being returned when it comes back. The way to fix this is to manage freeing the ascb from the tasklet completion routine, so that we only free it when the sequencer actually returns it. The code is also altered to use on stack completions and transfer variables. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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