nfsd4: Use kmemdup rather than duplicating its implementation

The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index b6fa792d6b85..0ec5a1b9700e 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -215,10 +215,9 @@ defer_free(struct nfsd4_compoundargs *argp,
 static char *savemem(struct nfsd4_compoundargs *argp, __be32 *p, int nbytes)
 {
         if (p == argp->tmp) {
-                p = kmalloc(nbytes, GFP_KERNEL);
+                p = kmemdup(argp->tmp, nbytes, GFP_KERNEL);
                 if (!p)
                         return NULL;
-                memcpy(p, argp->tmp, nbytes);
         } else {
                 BUG_ON(p != argp->tmpp);
                 argp->tmpp = NULL;