From: Oliver Neukum Date: Fri, 28 Mar 2014 10:29:25 +0000 (+0100) Subject: uas: fix error handling during scsi_scan() X-Git-Tag: v4.9.8~6511^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c637f1fa7b0452b71eebd35d00906d371c04714e;p=platform%2Fkernel%2Flinux-rpi3.git uas: fix error handling during scsi_scan() intfdata is set only after scsi_scan(). uas_pre_reset() however needs intfdata to be valid and will follow the NULL pointer killing khubd. intfdata must be preemptively set before the host is registered and undone in the error case. Signed-off-by: Oliver Neukum Reviewed-by: Hans de Goede Acked-by: Hans de Goede Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 8f42226..fcab9b7 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -1096,16 +1096,17 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) if (result) goto free_streams; + usb_set_intfdata(intf, shost); result = scsi_add_host(shost, &intf->dev); if (result) goto free_streams; scsi_scan_host(shost); - usb_set_intfdata(intf, shost); return result; free_streams: uas_free_streams(devinfo); + usb_set_intfdata(intf, NULL); set_alt0: usb_set_interface(udev, intf->altsetting[0].desc.bInterfaceNumber, 0); if (shost)