fuse_file_alloc(): fix NULL dereferences

Fix obvious NULL dereferences spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/fuse/file.c

@@ -55,9 +55,10 @@ struct fuse_file *fuse_file_alloc(void)
 		if (!ff->reserved_req) {
 			kfree(ff);
 			ff = NULL;
+		} else {
+			INIT_LIST_HEAD(&ff->write_entry);
+			atomic_set(&ff->count, 0);
 		}
-		INIT_LIST_HEAD(&ff->write_entry);
-		atomic_set(&ff->count, 0);
 	}
 	return ff;
 }