V4L/DVB (13953): firedtv: add missing NULL pointer check
commitb2ad41f9ef72d7b3309a2578bf4432a262ff2b47
authorStefan Richter <stefanr@s5r6.in-berlin.de>
Sat, 26 Dec 2009 00:47:12 +0000 (25 21:47 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Fri, 26 Feb 2010 18:10:33 +0000 (26 15:10 -0300)
treec0f57376ab77aace63f1670710baaffa79d4b8f9
parentf0ecba96e76295792a0b1ee2e03b505562e7b9f3
V4L/DVB (13953): firedtv: add missing NULL pointer check

If there is ever going to be a FireDTV or FloppyDTV firmware which does
not provide a minimal ASCII textual descriptor for Model_Id --- or if
the descriptor is provided indirectly in a descriptor directory ---
the ieee1394 variant of the device probe of firedtv would dereference a
NULL pointer.  The firewire variant of firedtv's device probe is not
affected.

The fix makes sure that such an unexpected firmware is safely recognized
by fdtv_alloc as an unknown firmware.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/dvb/firewire/firedtv-1394.c