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| author | Kinglong Mee <kinglongmee@gmail.com> | 2015-08-31 10:53:43 +0800 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-09-01 15:19:40 -0700 |
| commit | 4a3e5779cf6c6d557682b499c2190ad04c80c6fd (patch) | |
| tree | ab9c928ea898d763cfc75040416d689797fc6388 /fs | |
| parent | 4a70316caef7d158445e672e146eb9f1b8c1aeee (diff) | |
| download | linux-stable-4a3e5779cf6c6d557682b499c2190ad04c80c6fd.tar.gz linux-stable-4a3e5779cf6c6d557682b499c2190ad04c80c6fd.tar.bz2 linux-stable-4a3e5779cf6c6d557682b499c2190ad04c80c6fd.zip | |
nfs: Remove unneeded checking of the return value from scnprintf
The return value from scnprintf always less than the buffer length.
So, result >= len always false. This patch removes those checking.
int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)
{
int i;
i = vsnprintf(buf, size, fmt, args);
if (likely(i < size))
return i;
if (size != 0)
return size - 1;
return 0;
}
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 19 |
1 files changed, 1 insertions, 18 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 3f73539579e5..693b903b48bd 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5014,11 +5014,10 @@ nfs4_init_nonuniform_client_string(struct nfs_client *clp) int result; size_t len; char *str; - bool retried = false; if (clp->cl_owner_id != NULL) return 0; -retry: + rcu_read_lock(); len = 14 + strlen(clp->cl_ipaddr) + 1 + strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR)) + @@ -5046,14 +5045,6 @@ retry: rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO)); rcu_read_unlock(); - /* Did something change? */ - if (result >= len) { - kfree(str); - if (retried) - return -EINVAL; - retried = true; - goto retry; - } clp->cl_owner_id = str; return 0; } @@ -5085,10 +5076,6 @@ nfs4_init_uniquifier_client_string(struct nfs_client *clp) clp->rpc_ops->version, clp->cl_minorversion, nfs4_client_id_uniquifier, clp->cl_rpcclient->cl_nodename); - if (result >= len) { - kfree(str); - return -EINVAL; - } clp->cl_owner_id = str; return 0; } @@ -5124,10 +5111,6 @@ nfs4_init_uniform_client_string(struct nfs_client *clp) result = scnprintf(str, len, "Linux NFSv%u.%u %s", clp->rpc_ops->version, clp->cl_minorversion, clp->cl_rpcclient->cl_nodename); - if (result >= len) { - kfree(str); - return -EINVAL; - } clp->cl_owner_id = str; return 0; } |