serial: 68328serial: Use NULL for pointers

Compare pointer-typed values to NULL rather than 0

The semantic patch that makes this change is available
in scripts/coccinelle/null/badzero.cocci.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c
index 748c18f..9ba0c93 100644 (file)
--- a/drivers/tty/serial/68328serial.c
+++ b/drivers/tty/serial/68328serial.c
@@ -560,8 +560,8 @@ static void rs_fair_output(void)
        struct m68k_serial *info = &m68k_soft[0];
        char c;
 
-       if (info == 0) return;
-       if (info->xmit_buf == 0) return;
+       if (info == NULL) return;
+       if (info->xmit_buf == NULL) return;
 
        local_irq_save(flags);
        left = info->xmit_cnt;