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| author | David Brownell <dbrownell@users.sourceforge.net> | 2008-08-07 05:46:10 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-08-14 04:32:57 +0400 |
| commit | e5fbab51b4219fbd1dab28666affe38a920b5f7e (patch) | |
| tree | dc2d6ff5467f4eff183de712eb13403d35d13351 /drivers/usb/serial/garmin_gps.c | |
| parent | 934da4635c2d05cef474e5243ef05df95b2ad264 (diff) | |
| download | linux-e5fbab51b4219fbd1dab28666affe38a920b5f7e.tar.xz | |
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 <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/garmin_gps.c')
0 files changed, 0 insertions, 0 deletions