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| author | Christian Schoenebeck <qemu_oss@crudebyte.com> | 2021-05-16 17:55:34 +0200 |
|---|---|---|
| committer | Christian Schoenebeck <qemu_oss@crudebyte.com> | 2021-07-05 13:03:16 +0200 |
| commit | 232a4d2c25c3a83e148116a15f992f728c3579e6 (patch) | |
| tree | 10edbcf83df08d5ec9df57406255b8fab0cbcb41 /hw/9pfs/9p.c | |
| parent | 6f569084277dc7ae351141cfa6ad3649e92a1390 (diff) | |
| download | qemu-232a4d2c25c3a83e148116a15f992f728c3579e6.zip qemu-232a4d2c25c3a83e148116a15f992f728c3579e6.tar.gz qemu-232a4d2c25c3a83e148116a15f992f728c3579e6.tar.bz2 | |
9pfs: simplify v9fs_walk()
There is only one comparison between nwnames and P9_MAXWELEM required.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1liKiz-0006BC-Ja@lizzy.crudebyte.com>
Diffstat (limited to 'hw/9pfs/9p.c')
| -rw-r--r-- | hw/9pfs/9p.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index 0fa776a..89aa07d 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -1739,7 +1739,11 @@ static void coroutine_fn v9fs_walk(void *opaque) trace_v9fs_walk(pdu->tag, pdu->id, fid, newfid, nwnames); - if (nwnames && nwnames <= P9_MAXWELEM) { + if (nwnames > P9_MAXWELEM) { + err = -EINVAL; + goto out_nofid; + } + if (nwnames) { wnames = g_new0(V9fsString, nwnames); qids = g_new0(V9fsQID, nwnames); for (i = 0; i < nwnames; i++) { @@ -1753,9 +1757,6 @@ static void coroutine_fn v9fs_walk(void *opaque) } offset += err; } - } else if (nwnames > P9_MAXWELEM) { - err = -EINVAL; - goto out_nofid; } fidp = get_fid(pdu, fid); if (fidp == NULL) { |