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author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2018-03-17 10:52:05 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-03-17 11:05:18 -0700 |
commit | 553d16af23afdf3b6aa12ce237e469c3f6237ba3 (patch) | |
tree | c5a3a8e43b94e9cfa174645f1760d20140104a0e /tools/perf/scripts/python/sctop.py | |
parent | 1f701f6d10a4578b7b2389fd80e4ef28aeb80057 (diff) |
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/sctop.py')
0 files changed, 0 insertions, 0 deletions