Snd_cx88_create: don't dereference NULL core

From: Duncan Sands <duncan.sands@math.u-psud.fr>

If the call to cx88_core_get returns a NULL value, it is dereferenced
by cx88_reset, and perhaps by cx88_core_put.  Spotted by the Coverity
checker.

Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-demod.h b/linux/drivers/media/video/pvrusb2/pvrusb2-demod.h
new file mode 100644
index 000000000..4c4e40ffb
--- /dev/null
+++ b/linux/drivers/media/video/pvrusb2/pvrusb2-demod.h
@@ -0,0 +1,38 @@
+/*
+ *
+ *  $Id$
+ *
+ *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+#ifndef __PVRUSB2_DEMOD_H
+#define __PVRUSB2_DEMOD_H
+
+#include "pvrusb2-i2c-core.h"
+
+int pvr2_i2c_demod_setup(struct pvr2_hdw *,struct pvr2_i2c_client *);
+
+#endif /* __PVRUSB2_DEMOD_H */
+
+/*
+  Stuff for Emacs to see, in order to encourage consistent editing style:
+  *** Local Variables: ***
+  *** mode: c ***
+  *** fill-column: 70 ***
+  *** tab-width: 8 ***
+  *** c-basic-offset: 8 ***
+  *** End: ***
+  */