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authorSean Young <sean@mess.org>2019-05-19 22:28:22 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-08-04 10:30:53 +0300
commit3cf6a070708895b1f7b1d54a8519ea46fdd4262b (patch)
tree9a1fc5244254e0db2d8e603f4f084a78e2066a0f /drivers/media/usb/au0828
parentf13ee5ae0b2f3c0e2e26287394de7c645d0d8d7d (diff)
downloadlinux-3cf6a070708895b1f7b1d54a8519ea46fdd4262b.tar.xz
media: au0828: fix null dereference in error path
commit 6d0d1ff9ff21fbb06b867c13a1d41ce8ddcd8230 upstream. au0828_usb_disconnect() gets the au0828_dev struct via usb_get_intfdata, so it needs to set up for the error paths. Reported-by: syzbot+357d86bcb4cca1a2f572@syzkaller.appspotmail.com Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/media/usb/au0828')
-rw-r--r--drivers/media/usb/au0828/au0828-core.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index 257ae0d8cfe2..e3f63299f85c 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -623,6 +623,12 @@ static int au0828_usb_probe(struct usb_interface *interface,
/* Setup */
au0828_card_setup(dev);
+ /*
+ * Store the pointer to the au0828_dev so it can be accessed in
+ * au0828_usb_disconnect
+ */
+ usb_set_intfdata(interface, dev);
+
/* Analog TV */
retval = au0828_analog_register(dev, interface);
if (retval) {
@@ -641,12 +647,6 @@ static int au0828_usb_probe(struct usb_interface *interface,
/* Remote controller */
au0828_rc_register(dev);
- /*
- * Store the pointer to the au0828_dev so it can be accessed in
- * au0828_usb_disconnect
- */
- usb_set_intfdata(interface, dev);
-
pr_info("Registered device AU0828 [%s]\n",
dev->board.name == NULL ? "Unset" : dev->board.name);