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

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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>
This commit is contained in:
Adrian Bunk 2006-03-25 03:08:06 -08:00 committed by Linus Torvalds
parent daff89f324
commit 1f4d4a80fb
1 changed files with 4 additions and 1 deletions
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5
drivers/isdn/i4l/isdn_tty.c
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@ -2345,12 +2345,15 @@ isdn_tty_at_cout(char *msg, modem_info * info)
u_long flags; u_long flags;
struct sk_buff *skb = NULL; struct sk_buff *skb = NULL;
char *sp = NULL; char *sp = NULL;
int l = strlen(msg); int l;
if (!msg) { if (!msg) {
printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n");
return; return;
} }
l = strlen(msg);
spin_lock_irqsave(&info->readlock, flags); spin_lock_irqsave(&info->readlock, flags);
tty = info->tty; tty = info->tty;
if ((info->flags & ISDN_ASYNC_CLOSING) || (!tty)) { if ((info->flags & ISDN_ASYNC_CLOSING) || (!tty)) {