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, 0 insertions, 106 deletions

diff --git a/v4l/scripts/usbaudio_setup.sh b/v4l/scripts/usbaudio_setup.sh
deleted file mode 100755
index 66fdd23df..000000000
--- a/v4l/scripts/usbaudio_setup.sh
+++ /dev/null
@@ -1,106 +0,0 @@
-#!/bin/bash
-#
-# Copyright (C) 2006 Markus Rechberger <mrechberger@gmail.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, or
-# (at your option) any later version.
-#
-# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-
-which /usr/bin/dialog >/dev/null
-if [ "0" != "$?" ]; then
-echo "this tool requires  \"dialog\" (http://hightek.org/dialog/)"
-exit 1
-fi
-uid=`id -u`
-if [ "0" != "$uid" ]; then
-echo "this tool must be run as root, you can disable this message by editing the script but only do that unless you know what you're doing!"
-exit 1
-fi
-which gcc > /dev/null
-if [ "0" != "$?" ]; then
-echo "this tool won't work unless you install gcc"
-exit 1
-fi
-test -f ossid
-if [ "0" != "$?" ]; then
-cat > ossid.c <<_EOF
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <linux/soundcard.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-int main(int argc, char **argv){
-        int fd;
-        struct mixer_info *info;
-        fd=open(argv[1],O_RDONLY);
-        if(fd>=0){
-                info=malloc(sizeof(struct mixer_info));
-                ioctl(fd,SOUND_MIXER_INFO,info);
-                printf("%c \"%s %s\"\n",(argv[1][strlen(argv[1])-1]=='p')?'0':(argv[1][strlen(argv[1])-1]+1),info->name,info->id);
-                free(info);
-                close(fd);
-        } else {
-                return 1;
-        }
-        return 0;
-}
-_EOF
-gcc ossid.c -o ossid
-rm ossid.c
-fi
-
-test -f /proc/asound/cards
-if [ "0" != "$?" ]; then
-dialog --title "Welcome" --backtitle "Empia Sound Configuration" \
---msgbox "Your system doesn't support ALSA, please have a look at \
-www.alsa-project.org and set it up properly \
-
-
-Press any key to continue... " 11 50
-exit 1;
-fi
-
-dialog --title "Welcome" --backtitle "Empia Sound Configuration" \
---msgbox "This tool was written to ease up sound configuration for
-* Terratec Hybrid XS
-* Terratec Cinergy 250 USB 2.0
-* Hauppauge HVR 900
-* and possible others :)
-
-first select an usb audio source, as target choose your soundcard
-Press any key to continue... " 13 60
-
-ls /dev/dsp* | while read a; do ./ossid $a; done | xargs dialog --menu "Choose your TV Audio source:" 12 60 5 2>/tmp/em2880_source.$$
-ls /dev/dsp* | while read a; do ./ossid $a; done | xargs dialog --menu "Choose your output soundcard device:" 12 60 5 2>/tmp/em2880_dst.$$
-
-source=`egrep '^[0-9p]' /tmp/em2880_source.$$`
-dst=`egrep '^[0-9p]' /tmp/em2880_dst.$$`
-
-echo "playing $source to $dst";
-if [ "$source" = "0" ]; then
-	device="/dev/dsp"
-else
-	device="/dev/dsp`expr $source - 1`"
-fi
-
-if [ "$dst" = "0" ]; then
-	device2="/dev/dsp"
-else
-	device2="/dev/dsp`expr $source - 1`"
-fi
-clear
-echo "Using command: sox -r 48000 -w -c 2 -t ossdsp $device -t ossdsp $device2"
-sox -r 48000 -w -c 2 -t ossdsp $device -t ossdsp $device2