aboutsummaryrefslogtreecommitdiffstats
path: root/block/bsg.c
diff options
context:
space:
mode:
Diffstat (limited to 'block/bsg.c')
-rw-r--r--block/bsg.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/block/bsg.c b/block/bsg.c
index 8e181ab3afb9..8917c5174dc2 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -279,6 +279,7 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr)
goto out;
}
rq->next_rq = next_rq;
+ next_rq->cmd_type = rq->cmd_type;
dxferp = (void*)(unsigned long)hdr->din_xferp;
ret = blk_rq_map_user(q, next_rq, dxferp, hdr->din_xfer_len);
@@ -445,6 +446,15 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
else
hdr->dout_resid = rq->data_len;
+ /*
+ * If the request generated a negative error number, return it
+ * (providing we aren't already returning an error); if it's
+ * just a protocol response (i.e. non negative), that gets
+ * processed above.
+ */
+ if (!ret && rq->errors < 0)
+ ret = rq->errors;
+
blk_rq_unmap_user(bio);
blk_put_request(rq);
@@ -837,6 +847,7 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct bsg_device *bd = file->private_data;
int __user *uarg = (int __user *) arg;
+ int ret;
switch (cmd) {
/*
@@ -889,12 +900,12 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
if (rq->next_rq)
bidi_bio = rq->next_rq->bio;
blk_execute_rq(bd->queue, NULL, rq, 0);
- blk_complete_sgv4_hdr_rq(rq, &hdr, bio, bidi_bio);
+ ret = blk_complete_sgv4_hdr_rq(rq, &hdr, bio, bidi_bio);
if (copy_to_user(uarg, &hdr, sizeof(hdr)))
return -EFAULT;
- return 0;
+ return ret;
}
/*
* block device ioctls