[PATCH 1/1] NFS: Deletion of unnecessary checks before the function call "nfs_put_client"

SF Markus Elfring
2014-11-18T13:11:06Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 18 Nov 2014 13:23:43 +0100

The nfs_put_client() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
fs/nfs/filelayout/filelayoutdev.c | 3 +--
fs/nfs/nfs4client.c | 15 +++++----------
2 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/fs/nfs/filelayout/filelayoutdev.c b/fs/nfs/filelayout/filelayoutdev.c
index 8540516..cc5e7d6 100644
--- a/fs/nfs/filelayout/filelayoutdev.c
+++ b/fs/nfs/filelayout/filelayoutdev.c
@@ -204,8 +204,7 @@ destroy_ds(struct nfs4_pnfs_ds *ds)
ifdebug(FACILITY)
print_ds(ds);

- if (ds->ds_clp)
- nfs_put_client(ds->ds_clp);
+ nfs_put_client(ds->ds_clp);

while (!list_empty(&ds->ds_addrs)) {
da = list_first_entry(&ds->ds_addrs,
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index ffdb28d..5f07a0e 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -498,8 +498,7 @@ int nfs40_walk_client_list(struct nfs_client *new,
atomic_inc(&pos->cl_count);
spin_unlock(&nn->nfs_client_lock);

- if (prev)
- nfs_put_client(prev);
+ nfs_put_client(prev);
prev = pos;

status = nfs_wait_client_init_complete(pos);
@@ -517,8 +516,7 @@ int nfs40_walk_client_list(struct nfs_client *new,
atomic_inc(&pos->cl_count);
spin_unlock(&nn->nfs_client_lock);

- if (prev)
- nfs_put_client(prev);
+ nfs_put_client(prev);
prev = pos;

status = nfs4_proc_setclientid_confirm(pos, &clid, cred);
@@ -549,8 +547,7 @@ int nfs40_walk_client_list(struct nfs_client *new,

/* No match found. The server lost our clientid */
out:
- if (prev)
- nfs_put_client(prev);
+ nfs_put_client(prev);
dprintk("NFS: <-- %s status = %d\n", __func__, status);
return status;
}
@@ -641,8 +638,7 @@ int nfs41_walk_client_list(struct nfs_client *new,
atomic_inc(&pos->cl_count);
spin_unlock(&nn->nfs_client_lock);

- if (prev)
- nfs_put_client(prev);
+ nfs_put_client(prev);
prev = pos;

status = nfs_wait_client_init_complete(pos);
@@ -675,8 +671,7 @@ int nfs41_walk_client_list(struct nfs_client *new,
/* No matching nfs_client found. */
spin_unlock(&nn->nfs_client_lock);
dprintk("NFS: <-- %s status = %d\n", __func__, status);
- if (prev)
- nfs_put_client(prev);
+ nfs_put_client(prev);
return status;
}
#endif /* CONFIG_NFS_V4_1 */
--
2.1.3