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authorDima Zavin <dima@android.com>2011-12-30 15:16:44 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2011-12-30 15:26:35 -0800
commite90f869cae3b4aedf0f6d2ca8048d60245ee77f7 (patch)
tree9afd751f1f9bdbd2623e065054aafc8cdfdb41eb
parent566cf5b6e34504aaccb76167ecccd7e7e69e6456 (diff)
Input: evdev - if no events and non-block, return EAGAIN not 0
Signed-off-by: Dima Zavin <dima@android.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
-rw-r--r--drivers/input/evdev.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 03344b3c7c15..a9d871651ce7 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -412,6 +412,9 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
retval += input_event_size();
}
+ if (retval == 0 && (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
return retval;
}