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tools/kvm/9p: Add error handling

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return error via RERROR message

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Aneesh Kumar K.V
2015-06-01 16:39:45 +01:00
committed by Will Deacon
parent ead43b0101
commit 6c8ca05340
1 changed files with 16 additions and 7 deletions
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virtio/9p.c
+16 -7
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@@ -325,13 +325,15 @@ static void virtio_p9_create(struct p9_dev *p9dev,
}
if (lstat(fid->abs_path, &st) < 0)
return;
goto err_out;
st2qid(&st, &rcreate->qid);
*outlen = VIRTIO_P9_HDR_LEN + sizeof(*rcreate);
set_p9msg_hdr(inmsg, *outlen, P9_RCREATE, outmsg->tag);
return;
err_out:
virtio_p9_error_reply(p9dev, pdu, errno, outlen);
return;
}
@@ -361,7 +363,7 @@ static void virtio_p9_walk(struct p9_dev *p9dev,
str->len, (char *)&str->str);
if (lstat(rel_to_abs(p9dev, tmp, full_path), &st) < 0)
break;
goto err_out;
st2qid(&st, &rwalk->wqids[i]);
new_fid->is_dir = S_ISDIR(st.st_mode);
@@ -378,7 +380,9 @@ static void virtio_p9_walk(struct p9_dev *p9dev,
*outlen = VIRTIO_P9_HDR_LEN + sizeof(u16) +
sizeof(struct p9_qid)*rwalk->nwqid;
set_p9msg_hdr(inmsg, *outlen, P9_RWALK, outmsg->tag);
return;
err_out:
virtio_p9_error_reply(p9dev, pdu, errno, outlen);
return;
}
@@ -398,7 +402,7 @@ static void virtio_p9_attach(struct p9_dev *p9dev,
p9dev->fids[i].fid = P9_NOFID;
if (lstat(p9dev->root_dir, &st) < 0)
return;
goto err_out;
st2qid(&st, &rattach->qid);
@@ -409,7 +413,9 @@ static void virtio_p9_attach(struct p9_dev *p9dev,
*outlen = VIRTIO_P9_HDR_LEN + sizeof(*rattach);
set_p9msg_hdr(inmsg, *outlen, P9_RATTACH, outmsg->tag);
return;
err_out:
virtio_p9_error_reply(p9dev, pdu, errno, outlen);
return;
}
@@ -511,13 +517,16 @@ static void virtio_p9_stat(struct p9_dev *p9dev,
struct p9_fid *fid = &p9dev->fids[tstat->fid];
if (lstat(fid->abs_path, &st) < 0)
return;
goto err_out;
ret = virtio_p9_fill_stat(p9dev, fid->path, &st, rstat);
*outlen = VIRTIO_P9_HDR_LEN + ret + sizeof(u16);
set_p9msg_hdr(inmsg, *outlen, P9_RSTAT, outmsg->tag);
return;
err_out:
virtio_p9_error_reply(p9dev, pdu, errno, outlen);
return;
}
static void virtio_p9_wstat(struct p9_dev *p9dev,