[PATCH] i4l/isdn_tty.c: fix a check-after-use

Fix a check-after-use spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index aeaa1db74bd87ad37bd103655df01791e2676a18..3585fb1f334460ae69a3c24e32c0ee03d52def49 100644 (file)
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -2345,12 +2345,15 @@ isdn_tty_at_cout(char *msg, modem_info * info)
        u_long flags;
        struct sk_buff *skb = NULL;
        char *sp = NULL;
-       int l = strlen(msg);
+       int l;
 
        if (!msg) {
                printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n");
                return;
        }
+
+       l = strlen(msg);
+
        spin_lock_irqsave(&info->readlock, flags);
        tty = info->tty;
        if ((info->flags & ISDN_ASYNC_CLOSING) || (!tty)) {