1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 3b2f6c04855e..e27f216361fc 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -241,7 +241,7 @@ typedef unsigned int __bitwise__ upf_t;
 
 struct uart_port {
         spinlock_t              lock;                   /* port lock */
-        unsigned int            iobase;                 /* in/out[bwl] */
+        unsigned long           iobase;                 /* in/out[bwl] */
         unsigned char __iomem   *membase;               /* read/write[bwl] */
         unsigned int            irq;                    /* irq number */
         unsigned int            uartclk;                /* base uart clock */