[ Upstream commit fff1abc4 ]

Make sure to release the snd_card also on a late allocation error.

Fixes: e0d3bafd ("V4L/DVB (10954): Add cx231xx USB driver")

Cc: stable <stable@vger.kernel.org>     # 2.6.30
Cc: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>