1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/boot/serial.c b/arch/powerpc/boot/serial.c
index 7fd32330a9a5..eaa0d3ae3518 100644
--- a/arch/powerpc/boot/serial.c
+++ b/arch/powerpc/boot/serial.c
@@ -27,7 +27,7 @@ static int serial_open(void)
         return scdp->open();
 }
 
-static void serial_write(char *buf, int len)
+static void serial_write(const char *buf, int len)
 {
         struct serial_console_data *scdp = console_ops.data;