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input: evdev: if no events and non-block, return EAGAIN not 0

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Change-Id: I5f0da721f74e5de111cffc7e7b375b72dd80e530
Signed-off-by: Dima Zavin <dima@android.com>
This commit is contained in:
Dima Zavin 2011-10-04 22:31:48 -07:00
parent 4873193751
commit 587b1eb162
1 changed files with 2 additions and 0 deletions
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2
drivers/input/evdev.c
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@ -426,6 +426,8 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
retval += input_event_size();
}
if (retval == 0 && file->f_flags & O_NONBLOCK)
retval = -EAGAIN;
return retval;
}