1 files changed, 5 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index 6e7c4923b5ea..411116c38da4 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -69,8 +69,12 @@ static void udbg_uart_putc(char c)
 
 static int udbg_uart_getc_poll(void)
 {
-        if (!udbg_uart_in || !(udbg_uart_in(UART_LSR) & LSR_DR))
+        if (!udbg_uart_in)
+                return -1;
+
+        if (!(udbg_uart_in(UART_LSR) & LSR_DR))
                 return udbg_uart_in(UART_RBR);
+
         return -1;
 }