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authorDevin Heitmueller <dheitmueller@linuxtv.org>2009-03-11 21:58:04 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:27 -0300
commite13ce79734348610a2b782cb818db65659b0dc83 (patch)
tree41b70ab7cfd93b553ce3c0cb59dd75a187396887 /drivers/media/video/au0828
parentb14667f32ad0f85f986847ef65f9f3d12a44b71a (diff)
V4L/DVB (11081): au0828: make sure v4l2_device name is unique
Make sure newly created v4l2 devices have a unique name, modeling the logic after the cx18 driver. Thanks to Andy Walls <awalls@radix.net> for pointing out the issue. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/au0828')
-rw-r--r--drivers/media/video/au0828/au0828-core.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/media/video/au0828/au0828-core.c b/drivers/media/video/au0828/au0828-core.c
index 3281a17fa2cd..8c761d164442 100644
--- a/drivers/media/video/au0828/au0828-core.c
+++ b/drivers/media/video/au0828/au0828-core.c
@@ -36,6 +36,8 @@ int au0828_debug;
module_param_named(debug, au0828_debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages");
+static atomic_t au0828_instance = ATOMIC_INIT(0);
+
#define _AU0828_BULKPIPE 0x03
#define _BULKPIPESIZE 0xffff
@@ -167,7 +169,7 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
static int au0828_usb_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
- int ifnum, retval;
+ int ifnum, retval, i;
struct au0828_dev *dev;
struct usb_device *usbdev = interface_to_usbdev(interface);
@@ -195,8 +197,9 @@ static int au0828_usb_probe(struct usb_interface *interface,
usb_set_intfdata(interface, dev);
/* Create the v4l2_device */
+ i = atomic_inc_return(&au0828_instance) - 1;
snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s-%03d",
- "au0828", 0);
+ "au0828", i);
retval = v4l2_device_register(&dev->usbdev->dev, &dev->v4l2_dev);
if (retval) {
printk(KERN_ERR "%s() v4l2_device_register failed\n",