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path: root/drivers/serial/cpm_uart/cpm_uart_cpm2.c
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Diffstat (limited to 'drivers/serial/cpm_uart/cpm_uart_cpm2.c')
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_cpm2.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index a9802e76b5fa..814ac006393f 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -30,6 +30,7 @@
#include <linux/module.h>
#include <linux/tty.h>
#include <linux/ioport.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/serial.h>
#include <linux/console.h>
@@ -61,7 +62,7 @@ void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port,
void __iomem *pram;
unsigned long offset;
struct resource res;
- unsigned long len;
+ resource_size_t len;
/* Don't remap parameter RAM if it has already been initialized
* during console setup.
@@ -74,7 +75,7 @@ void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port,
if (of_address_to_resource(np, 1, &res))
return NULL;
- len = 1 + res.end - res.start;
+ len = resource_size(&res);
pram = ioremap(res.start, len);
if (!pram)
return NULL;