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| author | Henry C Chang <henry.cy.chang@gmail.com> | 2011-05-03 02:29:56 (GMT) |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2011-05-03 16:28:11 (GMT) |
| commit | ca20892db7567c40e8ed0668f46cf0d085d7db6d (patch) | |
| tree | 80fe0a4cf9304b834e9faadbc08fb293db78cc84 | |
| parent | 3772d26d87efc2d91b2e4247e0001c89ed09a980 (diff) | |
| download | linux-ca20892db7567c40e8ed0668f46cf0d085d7db6d.tar.xz | |
libceph: fix ceph_msg_new error path
If memory allocation failed, calling ceph_msg_put() will cause GPF
since some of ceph_msg variables are not initialized first.
Fix Bug #970.
Signed-off-by: Henry C Chang <henry_c_chang@tcloudcomputing.com>
Signed-off-by: Sage Weil <sage@newdream.net>
| -rw-r--r-- | net/ceph/messenger.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 05f3578..e15a82c 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2267,6 +2267,19 @@ struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags) m->more_to_follow = false; m->pool = NULL; + /* middle */ + m->middle = NULL; + + /* data */ + m->nr_pages = 0; + m->page_alignment = 0; + m->pages = NULL; + m->pagelist = NULL; + m->bio = NULL; + m->bio_iter = NULL; + m->bio_seg = 0; + m->trail = NULL; + /* front */ if (front_len) { if (front_len > PAGE_CACHE_SIZE) { @@ -2286,19 +2299,6 @@ struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags) } m->front.iov_len = front_len; - /* middle */ - m->middle = NULL; - - /* data */ - m->nr_pages = 0; - m->page_alignment = 0; - m->pages = NULL; - m->pagelist = NULL; - m->bio = NULL; - m->bio_iter = NULL; - m->bio_seg = 0; - m->trail = NULL; - dout("ceph_msg_new %p front %d\n", m, front_len); return m; |