USB: fix dereference in drivers/usb/misc/adutux.c
USB: fix dereference in drivers/usb/misc/adutux.c

in two of the error cases, dev is still NULL,
and we dereference it. Spotted by coverity (cid#1428, 1429)

Signed-off-by: Eric Sesterhenn <86caaff84c57abceb7fdae007cf6db060e3716da@gmx.de>
Cc: Randy Dunlap <6f29df8e90a57f1ba61ffd63b0468c86bb6d3a99@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@suse.de>


TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs