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Subject[ 028/149] cdc-wdm: Dont clear WDM_READ unless entire read buffer is emptied
3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@decadent.org.uk>

commit b7a205545345578712611106b371538992e142ff upstream.

The WDM_READ flag is cleared later iff desc->length is reduced to 0.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Bjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/usb/class/cdc-wdm.c | 1 -
1 file changed, 1 deletion(-)

--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -457,7 +457,6 @@ retry:
spin_unlock_irq(&desc->iuspin);
goto retry;
}
- clear_bit(WDM_READ, &desc->flags);
cntr = desc->length;
spin_unlock_irq(&desc->iuspin);
}

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