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authorDevin Heitmueller <dheitmueller@linuxtv.org>2009-04-28 13:14:07 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-04-29 16:02:51 -0300
commitfe78a49c8ae009d33d6e2c80d4f7f2634440d523 (patch)
treeead4af63302bbf6790167789fa0778cc640466c9
parentd4dc673da9a94716ca2410306c1b36b5faf6c4cc (diff)
downloadlinux-2.6.34-ux500-fe78a49c8ae009d33d6e2c80d4f7f2634440d523.tar.gz
V4L/DVB (11652): au0828: fix kernel oops regression on USB disconnect.
A regression was introduced in hg changeset 33810c734a0d, which resulted in a kernel panic whenever the device was disconnected from USB. The call to 4l2_device_register() was overwriting the pointer for usb_set_intfdata(), so when au0828_usb_disconnect() was called, the usb_get_intfdata() returned a pointer to the v4l2_device instead of the au0828_dev structure. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/video/au0828/au0828-core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/video/au0828/au0828-core.c b/drivers/media/video/au0828/au0828-core.c
index 4cee0b92eee..a1e4c0d769a 100644
--- a/drivers/media/video/au0828/au0828-core.c
+++ b/drivers/media/video/au0828/au0828-core.c
@@ -192,8 +192,6 @@ static int au0828_usb_probe(struct usb_interface *interface,
dev->usbdev = usbdev;
dev->boardnr = id->driver_info;
- usb_set_intfdata(interface, dev);
-
/* Create the v4l2_device */
retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
if (retval) {
@@ -222,6 +220,10 @@ static int au0828_usb_probe(struct usb_interface *interface,
/* Digital TV */
au0828_dvb_register(dev);
+ /* Store the pointer to the au0828_dev so it can be accessed in
+ au0828_usb_disconnect */
+ usb_set_intfdata(interface, dev);
+
printk(KERN_INFO "Registered device AU0828 [%s]\n",
dev->board.name == NULL ? "Unset" : dev->board.name);