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| author |   Bernd Porr <berndporr@f2s.com> | 2009-11-27 12:00:53 +0000 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-23 11:27:45 -0800 |
| commit | d4c3a56587af3edbe5f618b20e800e9f9fde13cb (patch) | |
| tree | c5968064db803c106cc9486e00d795ac07c4ec9f /drivers/staging/comedi/comedi.h | |
| parent | Staging: dst: remove from the tree (diff) | |
| download | linux-dev-d4c3a56587af3edbe5f618b20e800e9f9fde13cb.tar.xz linux-dev-d4c3a56587af3edbe5f618b20e800e9f9fde13cb.zip | |
Staging: comedi: usbdux.c: fix locking up of the driver when the comedi ringbuffer runs empty
Jan-Matthias Braun spotted a bug which locks up the driver when the
comedi ring buffer runs empty and provided a patch. The driver would
still send the data to comedi but the reader won't wake up any more.
What's required is setting the flag COMEDI_CB_BLOCK after new data has
arrived which wakes up the reader and therefore the read() command.
Signed-off-by: Bernd Porr <berndporr@f2s.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/comedi/comedi.h')
0 files changed, 0 insertions, 0 deletions