usb: microtek possible memleak fix

Possible memleak fix on error path. The changes:

- out_kfree2 and out_free_urb replaced
- missing scsi_host_put() added

Here it goes:

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index 3038ed0700d3..8ccddf74534a 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -796,7 +796,7 @@ static int mts_usb_probe(struct usb_interface *intf,
 
         new_desc->context.scsi_status = kmalloc(1, GFP_KERNEL);
         if (!new_desc->context.scsi_status)
-                goto out_kfree2;
+                goto out_free_urb;
 
         new_desc->usb_dev = dev;
         new_desc->usb_intf = intf;
@@ -822,18 +822,20 @@ static int mts_usb_probe(struct usb_interface *intf,
         new_desc->host = scsi_host_alloc(&mts_scsi_host_template,
                         sizeof(new_desc));
         if (!new_desc->host)
-                goto out_free_urb;
+                goto out_kfree2;
 
         new_desc->host->hostdata[0] = (unsigned long)new_desc;
         if (scsi_add_host(new_desc->host, NULL)) {
                 err_retval = -EIO;
-                goto out_free_urb;
+                goto out_host_put;
         }
         scsi_scan_host(new_desc->host);
 
         usb_set_intfdata(intf, new_desc);
         return 0;
 
+ out_host_put:
+        scsi_host_put(new_desc->host);
  out_kfree2:
         kfree(new_desc->context.scsi_status);
  out_free_urb: