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[DLM] fix NULL ls usage

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Fix regression in recent patch "[DLM] variable allocation" which
attempts to dereference an "ls" struct when it's NULL.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
David Teigland 2007-07-13 14:49:06 -05:00 committed by Steven Whitehouse
parent 25720c2d73
commit 41684f9547
1 changed files with 3 additions and 4 deletions
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7
fs/dlm/rcom.c
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@ -386,8 +386,7 @@ static void receive_rcom_lock_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
dlm_recover_process_copy(ls, rc_in);
}
static int send_ls_not_ready(struct dlm_ls *ls, int nodeid,
struct dlm_rcom *rc_in)
static int send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in)
{
struct dlm_rcom *rc;
struct rcom_config *rf;
@ -395,7 +394,7 @@ static int send_ls_not_ready(struct dlm_ls *ls, int nodeid,
char *mb;
int mb_len = sizeof(struct dlm_rcom) + sizeof(struct rcom_config);
mh = dlm_lowcomms_get_buffer(nodeid, mb_len, ls->ls_allocation, &mb);
mh = dlm_lowcomms_get_buffer(nodeid, mb_len, GFP_NOFS, &mb);
if (!mh)
return -ENOBUFS;
memset(mb, 0, mb_len);
@ -465,7 +464,7 @@ void dlm_receive_rcom(struct dlm_header *hd, int nodeid)
log_print("lockspace %x from %d type %x not found",
hd->h_lockspace, nodeid, rc->rc_type);
if (rc->rc_type == DLM_RCOM_STATUS)
send_ls_not_ready(ls, nodeid, rc);
send_ls_not_ready(nodeid, rc);
return;
}