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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-05-02 03:13:37 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-05-02 03:23:58 -0400 |
| commit | 2872a9b521ac936c7a8525a8c2bdfb9b4ccf5cfc (patch) | |
| tree | 613f1456fe437419bbc014f84d7d3c2e73568743 /Documentation | |
| parent | dba4258068f822b7dafc78c28fe9c99c551eca7e (diff) | |
Input: evdev - properly handle read/write with count 0
According to the standard count 0 is special - no IO should happen but we
can check error conditions (device gone away, etc), and return 0 if there
are no errors. We used to return -EINVAL instead and we also could return 0
if an event was "stolen" by another thread.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions