diff options
| author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2018-03-17 20:52:05 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-03-17 21:05:18 +0300 |
| commit | 553d16af23afdf3b6aa12ce237e469c3f6237ba3 (patch) | |
| tree | c5a3a8e43b94e9cfa174645f1760d20140104a0e /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 1f701f6d10a4578b7b2389fd80e4ef28aeb80057 (diff) | |
| download | linux-553d16af23afdf3b6aa12ce237e469c3f6237ba3.tar.xz | |
Input: pegasus_notetaker - do not rely on input_dev->users
If the device is unused and suspended, a call to open will cause the
device to autoresume through the call to usb_autopm_get_interface().
input_dev->users is already incremented by the input subsystem,
therefore this expression will always be evaluated to true:
if (pegasus->dev->users && usb_submit_urb(pegasus->irq, GFP_NOIO) < 0)
retval = -EIO;
The same URB will then be fail when resubmitted in pegasus_open().
Introduce pegasus->is_open to keep track of the state instead.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions