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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-05-23 17:02:26 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-06-04 11:04:41 +0300 |
| commit | 5025ce070e2dff80bcf015a34a82edcf78229287 (patch) | |
| tree | 8c98c80c359466844de75dfc08dd313be3606c7a /mm/thrash.c | |
| parent | d1700f9258552294300083eb62f83262f21ae1db (diff) | |
OMAPDSS: fix bogus WARN_ON in dss_runtime_put()
pm_runtime_put_sync() in dss_runtime_put() returns -EBUSY when any child
of dss is still enabled. This happens, for example, when a display
output is enabled and one dumps the clocks via debugfs. This causes
dss_runtime_get & put to be called.
While I couldn't find anything about this in the documentation and it
wasn't immediately clear from runtime_pm code, it looks to me that
pm_runtime_put_sync() returns -EBUSY to inform that things went fine,
but the device could not be turned off as there are still child devices
that are enabled. This is not a problem.
This patch skips the WARN_ON if pm_runtime_put_sync() returns -EBUSY.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'mm/thrash.c')
0 files changed, 0 insertions, 0 deletions