nfs: Remove unnecessary NULL check before kfree()

Since kfree() already checks if its argument is NULL, an additional
check before calling kfree() is unnecessary and can be removed.

Remove it and thus also the following Coccinelle/coccicheck warning
reported by ifnullfree.cocci:

  WARNING: NULL check before some freeing functions is not needed

Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>

diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index a6103333b6665695e070c898e9f31642e2551c94..81bd1b9aba176fb2f6757b6899429cfdb7127344 100644 (file)
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -48,8 +48,7 @@ static struct nfs_pgio_header *nfs_readhdr_alloc(void)
 
 static void nfs_readhdr_free(struct nfs_pgio_header *rhdr)
 {
-       if (rhdr->res.scratch != NULL)
-               kfree(rhdr->res.scratch);
+       kfree(rhdr->res.scratch);
        kmem_cache_free(nfs_rdata_cachep, rhdr);
 }