diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-alsa-main.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-alsa-main.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/media/video/cx18/cx18-alsa-main.c b/drivers/media/video/cx18/cx18-alsa-main.c index dde2b0482f3..3c339774522 100644 --- a/drivers/media/video/cx18/cx18-alsa-main.c +++ b/drivers/media/video/cx18/cx18-alsa-main.c @@ -2,6 +2,9 @@ * ALSA interface to cx18 PCM capture streams * * Copyright (C) 2009 Andy Walls <awalls@radix.net> + * Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.com> + * + * Portions of this work were sponsored by ONELAN Limited. * * 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 @@ -31,11 +34,15 @@ #include <sound/initval.h> #include "cx18-driver.h" +#include "cx18-version.h" +#include "cx18-alsa.h" #include "cx18-alsa-mixer.h" #include "cx18-alsa-pcm.h" int cx18_alsa_debug; +#define CX18_DEBUG_ALSA_INFO(fmt, arg...) printk(KERN_INFO "%s: " fmt, "cx18-alsa", ## arg) + module_param_named(debug, cx18_alsa_debug, int, 0644); MODULE_PARM_DESC(debug, "Debug level (bitmask). Default: 0\n" @@ -116,6 +123,8 @@ static int __init snd_cx18_card_set_names(struct snd_cx18_card *cxsc) snprintf(sc->longname, sizeof(sc->longname), "CX23418 #%d %s TV/FM Radio/Line-In Capture", cx->instance, cx->card_name); + + return 0; } static int __init snd_cx18_init(struct v4l2_device *v4l2_dev) @@ -151,12 +160,6 @@ static int __init snd_cx18_init(struct v4l2_device *v4l2_dev) /* (4) Set the driver ID and name strings */ snd_cx18_card_set_names(cxsc); - /* (5) Create other components: mixer, PCM, & proc files */ - ret = snd_cx18_mixer_create(cxsc); - if (ret) { - CX18_ALSA_WARN("%s: snd_cx18_mixer_create() failed with err %d:" - "proceeding anyway\n", __func__, ret); - } ret = snd_cx18_pcm_create(cxsc); if (ret) { @@ -201,6 +204,11 @@ static int __init cx18_alsa_init_callback(struct device *dev, void *data) } cx = to_cx18(v4l2_dev); + if (cx == NULL) { + printk(KERN_ERR "cx18-alsa cx is NULL\n"); + return 0; + } + s = &cx->streams[CX18_ENC_STREAM_TYPE_PCM]; if (s->video_dev == NULL) { CX18_DEBUG_ALSA_INFO("%s: PCM stream for card is disabled - " @@ -234,6 +242,10 @@ static int __init cx18_alsa_init(void) printk(KERN_INFO "cx18-alsa: module loading...\n"); drv = driver_find("cx18", &pci_bus_type); + if (drv == NULL) { + printk("cx18-alsa: drv was null\n"); + return -ENODEV; + } ret = driver_for_each_device(drv, NULL, &count, cx18_alsa_init_callback); put_driver(drv); @@ -254,7 +266,7 @@ static int __init cx18_alsa_init(void) static void snd_cx18_exit(struct snd_cx18_card *cxsc) { - struct cx18 *cx = to_cx18(cxsc->4l2_dev); + struct cx18 *cx = to_cx18(cxsc->v4l2_dev); /* FIXME - pointer checks & shutdown cxsc */ |