Serial: Avoid unbalanced IRQ wake disable during resume

To avoid unbalanced IRQ wake disable, ensure that wakeups are disabled
only when wakeups have been successfully enabled.
Tested on OMAP3630SDP/ZOOM3.

Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Reported-by: Paul Walmsley <paul@pwsan.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 7a6daf18999..a23fa29d4eb 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -365,6 +365,7 @@ struct uart_port {
         struct device           *dev;                   /* parent device */
         unsigned char           hub6;                   /* this should be in the 8250 driver */
         unsigned char           suspended;
+        unsigned char           irq_wake;
         unsigned char           unused[2];
         void                    *private_data;          /* generic platform data pointer */
 };