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ceph: fix null pointer deref of r_osd in debug output

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This causes an oops when debug output is enabled and we kick
an osd request with no current r_osd (sometime after an osd
failure).  Check the pointer before dereferencing.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-03-15 22:20:39 -07:00
parent 0a990e7093
commit 12eadc1900
1 changed files with 1 additions and 1 deletions
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2
fs/ceph/osd_client.c
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@ -913,7 +913,7 @@ static int __kick_requests(struct ceph_osd_client *osdc,
kick: kick:
dout("kicking %p tid %llu osd%d\n", req, req->r_tid, dout("kicking %p tid %llu osd%d\n", req, req->r_tid,
req->r_osd->o_osd); req->r_osd ? req->r_osd->o_osd : -1);
req->r_flags |= CEPH_OSD_FLAG_RETRY; req->r_flags |= CEPH_OSD_FLAG_RETRY;
err = __send_request(osdc, req); err = __send_request(osdc, req);
if (err) { if (err) {