From 6ce8213b3328ae4a1db34339c282144740ac1ec6 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 17 Oct 2013 19:00:45 +0200 Subject: [PATCH] uas: Properly set interface to altsetting 0 on probe failure - Rename labels to properly reflect this - Don't skip free-ing the streams when scsi_init_shared_tag_map fails Signed-off-by: Hans de Goede Signed-off-by: Sarah Sharp --- drivers/usb/storage/uas.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 059ce62..ec1b22d 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -993,8 +993,8 @@ static void uas_free_streams(struct uas_dev_info *devinfo) */ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) { - int result; - struct Scsi_Host *shost; + int result = -ENOMEM; + struct Scsi_Host *shost = NULL; struct uas_dev_info *devinfo; struct usb_device *udev = interface_to_usbdev(intf); @@ -1003,12 +1003,11 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) devinfo = kmalloc(sizeof(struct uas_dev_info), GFP_KERNEL); if (!devinfo) - return -ENOMEM; + goto set_alt0; - result = -ENOMEM; shost = scsi_host_alloc(&uas_host_template, sizeof(void *)); if (!shost) - goto free; + goto set_alt0; shost->max_cmd_len = 16 + 252; shost->max_id = 1; @@ -1030,11 +1029,11 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) result = scsi_init_shared_tag_map(shost, devinfo->qdepth - 3); if (result) - goto free; + goto free_streams; result = scsi_add_host(shost, &intf->dev); if (result) - goto deconfig_eps; + goto free_streams; shost->hostdata[0] = (unsigned long)devinfo; @@ -1042,9 +1041,10 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) usb_set_intfdata(intf, shost); return result; -deconfig_eps: +free_streams: uas_free_streams(devinfo); - free: +set_alt0: + usb_set_interface(udev, intf->altsetting[0].desc.bInterfaceNumber, 0); kfree(devinfo); if (shost) scsi_host_put(shost); -- 2.7.4