From: David Brownell Date: Thu, 7 Aug 2008 01:46:10 +0000 (-0700) Subject: usb: cdc-acm: drain writes on close X-Git-Tag: v2.6.27-rc4~101^2~7 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5fbab51b4219fbd1dab28666affe38a920b5f7e;p=pandora-kernel.git usb: cdc-acm: drain writes on close Add a mechanism to let the write queue drain naturally before closing the TTY, rather than always losing that data. There is a timeout, so it can't wait too long. Provide missing locking inside acm_wb_is_avail(); it matters more now. Note, this presumes an earlier patch was applied, removing a call to this routine where the lock was held. Slightly improved diagnostics on write URB completion, so we can tell when a write URB gets killed and, if so, how much data it wrote first ... and so that I/O path is normally silent (and can't much change timings). Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed