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Staging: line6: fix up NULL assignment mistakes 

Should use NULL for a pointer, not 0, otherwise sparse complains.

Cc: Markus Grabner <grabner@icg.tugraz.at>
Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2009-02-27 20:49:46 -08:00
parent b702ed253d
commit 536165d8ef
6 changed files with 15 additions and 17 deletions
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4
drivers/staging/line6/audio.c
View File

@ -62,10 +62,10 @@ void line6_cleanup_audio(struct usb_line6 *line6)
{
struct snd_card *card = line6->card;
if(card == 0)
if (card == NULL)
return;
snd_card_disconnect(card);
snd_card_free(card);
line6->card = 0;
line6->card = NULL;
}

2
drivers/staging/line6/capture.c
View File

@ -279,7 +279,7 @@ static int snd_line6_capture_hw_free(struct snd_pcm_substream *substream)
if(line6pcm->buffer_in) {
kfree(line6pcm->buffer_in);
line6pcm->buffer_in = 0;
line6pcm->buffer_in = NULL;
}
return snd_pcm_lib_free_pages(substream);

14
drivers/staging/line6/driver.c
View File

@ -301,7 +301,7 @@ char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, int code2, in
if(!buffer) {
dev_err(line6->ifcdev, "out of memory\n");
return 0;
return NULL;
}
buffer[0] = LINE6_SYSEX_BEGIN;
@ -469,7 +469,7 @@ int line6_read_data(struct usb_line6 *line6, int address, void *data, size_t dat
/* query the serial number: */
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
(datalen << 8) | 0x21, address, 0, 0, LINE6_TIMEOUT * HZ);
(datalen << 8) | 0x21, address, NULL, 0, LINE6_TIMEOUT * HZ);
if(ret < 0) {
dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
@ -630,8 +630,8 @@ static void line6_list_devices(void)
static int line6_probe(struct usb_interface *interface, const struct usb_device_id *id)
{
int devtype;
struct usb_device *usbdev = 0;
struct usb_line6 *line6 = 0;
struct usb_device *usbdev = NULL;
struct usb_line6 *line6 = NULL;
const struct line6_properties *properties;
int devnum;
int interface_number, alternate = 0;
@ -987,7 +987,7 @@ static void line6_disconnect(struct usb_interface *interface)
for(i = LINE6_MAX_DEVICES; i--;)
if(line6_devices[i] == line6)
line6_devices[i] = 0;
line6_devices[i] = NULL;
}
line6_destruct(interface);
@ -1016,13 +1016,13 @@ static int __init line6_init(void)
printk("%s driver version %s%s\n", DRIVER_NAME, DRIVER_VERSION, DRIVER_REVISION);
line6_workqueue = create_workqueue(DRIVER_NAME);
if(line6_workqueue == 0) {
if (line6_workqueue == NULL) {
err("couldn't create workqueue");
return -EINVAL;
}
for(i = LINE6_MAX_DEVICES; i--;)
line6_devices[i] = 0;
line6_devices[i] = NULL;
retval = usb_register(&line6_driver);

8
drivers/staging/line6/midibuf.c
View File

@ -44,7 +44,7 @@ int midibuf_init(struct MidiBuffer *this, int size, int split)
{
this->buf = (unsigned char *)kmalloc(size, GFP_KERNEL);
if(this->buf == 0)
if (this->buf == NULL)
return -ENOMEM;
this->size = size;
@ -261,8 +261,6 @@ int midibuf_skip_message(struct MidiBuffer *this, unsigned short mask)
void midibuf_destroy(struct MidiBuffer *this)
{
if(this->buf != 0) {
kfree(this->buf);
this->buf = 0;
}
kfree(this->buf);
this->buf = NULL;
}

2
drivers/staging/line6/playback.c
View File

@ -329,7 +329,7 @@ static int snd_line6_playback_hw_free(struct snd_pcm_substream *substream)
if(line6pcm->wrap_out) {
kfree(line6pcm->wrap_out);
line6pcm->wrap_out = 0;
line6pcm->wrap_out = NULL;
}
return snd_pcm_lib_free_pages(substream);

2
drivers/staging/line6/toneport.c
View File

@ -117,7 +117,7 @@ static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2)
int ret;
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev,0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
cmd1, cmd2, 0, 0, LINE6_TIMEOUT * HZ);
cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ);
if(ret < 0) {
err("send failed (error %d)\n", ret);