diff --git a/lib/fuse.c b/lib/fuse.c
index 4446245..994a31f 100644
--- a/lib/fuse.c
+++ b/lib/fuse.c
@@ -2295,7 +2295,6 @@
         err = -ENOSYS;
         if (f->op.flush)
             err = fuse_do_flush(f, req, path, fi);
-        free(path);
     }
     if (f->op.lock) {
         struct flock lock;
@@ -2314,6 +2313,7 @@
         if (err == -ENOSYS)
             err = 0;
     }
+    free(path);
     pthread_rwlock_unlock(&f->tree_lock);
     reply_err(req, err);
 }
@@ -2948,9 +2948,10 @@
     struct fuse *f;
     struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
 
+    if (fuse_opt_add_arg(&args, "") == -1)
+	return NULL;
     if (opts &&
-        (fuse_opt_add_arg(&args, "") == -1 ||
-         fuse_opt_add_arg(&args, "-o") == -1 ||
+        (fuse_opt_add_arg(&args, "-o") == -1 ||
          fuse_opt_add_arg(&args, opts) == -1)) {
         fuse_opt_free_args(&args);
         return NULL;
diff --git a/lib/mount.c b/lib/mount.c
index a72294b..cbdedf3 100644
--- a/lib/mount.c
+++ b/lib/mount.c
@@ -151,7 +151,7 @@
     struct iovec iov;
     char buf[1];
     int rv;
-    char ccmsg[CMSG_SPACE(sizeof(int))];
+    size_t ccmsg[CMSG_SPACE(sizeof(int)) / sizeof(size_t)];
     struct cmsghdr *cmsg;
 
     iov.iov_base = buf;
diff --git a/lib/ulockmgr.c b/lib/ulockmgr.c
index 9e9c2b6..bf27b36 100644
--- a/lib/ulockmgr.c
+++ b/lib/ulockmgr.c
@@ -75,7 +75,7 @@
     struct msghdr msg;
     struct cmsghdr *p_cmsg;
     struct iovec vec;
-    char cmsgbuf[CMSG_SPACE(sizeof(int) * MAX_SEND_FDS)];
+    size_t cmsgbuf[CMSG_SPACE(sizeof(int) * MAX_SEND_FDS) / sizeof(size_t)];
     int res;
 
     assert(numfds <= MAX_SEND_FDS);