From: Adrian Bunk <[EMAIL PROTECTED]>

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

Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
 drivers/usb/serial/mos7840.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 021be39..5b71962 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2413,11 +2413,12 @@ static int mos7840_ioctl(struct usb_seri
        }
 
        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) {
-- 
1.4.2.4


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