diff options
Diffstat (limited to 'net/9p/client.c')
| -rw-r--r-- | net/9p/client.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/9p/client.c b/net/9p/client.c index 1a3f72bf45fc..a6c8a915e0d8 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -901,6 +901,7 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt) fid->clnt = clnt; fid->rdir = NULL; fid->fid = 0; + atomic_set(&fid->count, 1); idr_preload(GFP_KERNEL); spin_lock_irq(&clnt->lock); @@ -908,7 +909,6 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt) GFP_NOWAIT); spin_unlock_irq(&clnt->lock); idr_preload_end(); - if (!ret) return fid; @@ -1187,7 +1187,6 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname, p9_debug(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %ud wname[0] %s\n", oldfid->fid, fid->fid, nwname, wnames ? wnames[0] : NULL); - req = p9_client_rpc(clnt, P9_TWALK, "ddT", oldfid->fid, fid->fid, nwname, wnames); if (IS_ERR(req)) { @@ -1461,12 +1460,14 @@ int p9_client_clunk(struct p9_fid *fid) struct p9_req_t *req; int retries = 0; - if (!fid) { - pr_warn("%s (%d): Trying to clunk with NULL fid\n", + if (!fid || IS_ERR(fid)) { + pr_warn("%s (%d): Trying to clunk with invalid fid\n", __func__, task_pid_nr(current)); dump_stack(); return 0; } + if (!atomic_dec_and_test(&fid->count)) + return 0; again: p9_debug(P9_DEBUG_9P, ">>> TCLUNK fid %d (try %d)\n", fid->fid, |