From 1b370bc28f90955bccda8be5e7d7047ad1381da7 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sat, 7 Jul 2007 08:04:47 -0400 Subject: NFSv4: Allow nfs4_opendata_to_nfs4_state to return errors. Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-) (limited to 'fs/nfs') diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 3b59c5ded3fb..52ba7630794c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -385,15 +385,19 @@ static struct nfs4_state *nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data struct nfs4_state *state = NULL; struct nfs_delegation *delegation; nfs4_stateid *deleg_stateid = NULL; + int ret; + ret = -EAGAIN; if (!(data->f_attr.valid & NFS_ATTR_FATTR)) - goto out; + goto err; inode = nfs_fhget(data->dir->d_sb, &data->o_res.fh, &data->f_attr); + ret = PTR_ERR(inode); if (IS_ERR(inode)) - goto out; + goto err; + ret = -ENOMEM; state = nfs4_get_open_state(inode, data->owner); if (state == NULL) - goto put_inode; + goto err_put_inode; if (data->o_res.delegation_type != 0) { int delegation_flags = 0; @@ -417,10 +421,12 @@ static struct nfs4_state *nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data deleg_stateid = &delegation->stateid; update_open_stateid(state, &data->o_res.stateid, deleg_stateid, data->o_arg.open_flags); rcu_read_unlock(); -put_inode: iput(inode); -out: return state; +err_put_inode: + iput(inode); +err: + return ERR_PTR(ret); } static struct nfs_open_context *nfs4_state_find_open_context(struct nfs4_state *state) @@ -453,8 +459,9 @@ static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, mode_t openf if (ret != 0) return ret; newstate = nfs4_opendata_to_nfs4_state(opendata); - if (newstate != NULL) - nfs4_close_state(&opendata->path, newstate, openflags); + if (IS_ERR(newstate)) + return PTR_ERR(newstate); + nfs4_close_state(&opendata->path, newstate, openflags); *res = newstate; return 0; } @@ -631,7 +638,7 @@ static void nfs4_open_confirm_release(void *calldata) goto out_free; nfs_confirm_seqid(&data->owner->so_seqid, 0); state = nfs4_opendata_to_nfs4_state(data); - if (state != NULL) + if (!IS_ERR(state)) nfs4_close_state(&data->path, state, data->o_arg.open_flags); out_free: nfs4_opendata_put(data); @@ -736,7 +743,7 @@ static void nfs4_open_release(void *calldata) goto out_free; nfs_confirm_seqid(&data->owner->so_seqid, 0); state = nfs4_opendata_to_nfs4_state(data); - if (state != NULL) + if (!IS_ERR(state)) nfs4_close_state(&data->path, state, data->o_arg.open_flags); out_free: nfs4_opendata_put(data); @@ -1036,9 +1043,9 @@ static int _nfs4_do_open(struct inode *dir, struct path *path, int flags, struct if (opendata->o_arg.open_flags & O_EXCL) nfs4_exclusive_attrset(opendata, sattr); - status = -ENOMEM; state = nfs4_opendata_to_nfs4_state(opendata); - if (state == NULL) + status = PTR_ERR(state); + if (IS_ERR(state)) goto err_opendata_put; nfs4_opendata_put(opendata); nfs4_put_state_owner(sp); -- cgit v1.2.3