From: Sean Young Date: Sun, 19 May 2019 19:28:22 +0000 (-0400) Subject: media: au0828: fix null dereference in error path X-Git-Tag: v5.15~5520^2~708 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6d0d1ff9ff21fbb06b867c13a1d41ce8ddcd8230;p=platform%2Fkernel%2Flinux-starfive.git media: au0828: fix null dereference in error path 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 Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c index 925a804..e306d5d 100644 --- a/drivers/media/usb/au0828/au0828-core.c +++ b/drivers/media/usb/au0828/au0828-core.c @@ -729,6 +729,12 @@ 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) { @@ -747,12 +753,6 @@ 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);