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Commit 06445014 authored Oct 12, 2007 by Oliver Neukum Committed by Dmitry Torokhov Oct 12, 2007

Input: fix open count handling in input interfaces



If input_open_device() fails we should not leave interfaces marked
as  opened.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

parent 1ea3abf7

drivers/input/evdev.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -192,8 +192,11 @@ static int evdev_open_device(struct evdev *evdev)

		if (!evdev->exist)
		retval = -ENODEV;
		else if (!evdev->open++)
		else if (!evdev->open++) {
		retval = input_open_device(&evdev->handle);
		if (retval)
		evdev->open--;
		}

		mutex_unlock(&evdev->mutex);
		return retval;

drivers/input/joydev.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -205,8 +205,11 @@ static int joydev_open_device(struct joydev *joydev)

		if (!joydev->exist)
		retval = -ENODEV;
		else if (!joydev->open++)
		else if (!joydev->open++) {
		retval = input_open_device(&joydev->handle);
		if (retval)
		joydev->open--;
		}

		mutex_unlock(&joydev->mutex);
		return retval;

drivers/input/mousedev.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -428,8 +428,11 @@ static int mousedev_open_device(struct mousedev *mousedev)
		mixdev_open_devices();
		else if (!mousedev->exist)
		retval = -ENODEV;
		else if (!mousedev->open++)
		else if (!mousedev->open++) {
		retval = input_open_device(&mousedev->handle);
		if (retval)
		mousedev->open--;
		}

		mutex_unlock(&mousedev->mutex);
		return retval;

drivers/input/tsdev.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -185,8 +185,11 @@ static int tsdev_open_device(struct tsdev *tsdev)

		if (!tsdev->exist)
		retval = -ENODEV;
		else if (!tsdev->open++)
		else if (!tsdev->open++) {
		retval = input_open_device(&tsdev->handle);
		if (retval)
		tsdev->open--;
		}

		mutex_unlock(&tsdev->mutex);
		return retval;