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Input: bma150 - fix checking pm_runtime_get_sync() return value

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When PM_RUNTIME is not defined, pm_runtime_get_sync() returns 1, see
include/linux/pm_runtime.c::__pm_runtime_resume(), and the check of the
return value was overlooking this, in this case bma150_open() would
return 1 which is not expected by upper layers.

Maybe the check for != -ENOSYS (Function not implemented) was meant to
cover this, but pm_runtime_get_sync() does not return this value.

For now fix the issue locally by checking explicitly for negative return
values.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Antonio Ospite <ao2@amarulasolutions.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Michael Trimarchi 2013-02-15 14:42:51 -08:00 committed by Dmitry Torokhov
parent cd40120487
commit 79f34d19d7
1 changed files with 1 additions and 1 deletions
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2
drivers/input/misc/bma150.c
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@ -372,7 +372,7 @@ static int bma150_open(struct bma150_data *bma150)
int error;
error = pm_runtime_get_sync(&bma150->client->dev);
if (error && error != -ENOSYS)
if (error < 0 && error != -ENOSYS)
return error;
/*