block: fix SG_IO to return a proper error value

[safe/jmp/linux-2.6] / block / scsi_ioctl.c

diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 626ee27..84b7f87 100644 (file)
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -217,7 +217,7 @@ static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
 static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr,
                                 struct bio *bio)
 {
-       int ret = 0;
+       int r, ret = 0;
 
        /*
         * fill in all the output members
@@ -242,7 +242,9 @@ static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr,
                        ret = -EFAULT;
        }
 
-       blk_rq_unmap_user(bio);
+       r = blk_rq_unmap_user(bio);
+       if (!ret)
+               ret = r;
        blk_put_request(rq);
 
        return ret;