[2.6 patch] drivers/usb/serial/mos7840.c: fix a check-after-dereference

[Adrian Bunk]

This patch fixes an obvious check-after-dereference spotted by the 
Coverity checker.

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>

--- linux-2.6/drivers/usb/serial/mos7840.c.old	2006-10-09 00:35:49.000000000 +0200
+++ linux-2.6/drivers/usb/serial/mos7840.c	2006-10-09 00:36:28.000000000 +0200
@@ -2412,11 +2412,12 @@
 	}
 
 	mos7840_port = mos7840_get_port_private(port);
-	tty = mos7840_port->port->tty;
 
 	if (mos7840_port == NULL)
 		return -1;
 
+	tty = mos7840_port->port->tty;
+
 	dbg("%s - port %d, cmd = 0x%x", __FUNCTION__, port->number, cmd);
 
 	switch (cmd) {

-
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