Commit 313684c4 authored Nov 18, 2016 by Geliang Tang Committed by Miklos Szeredi Dec 16, 2016

ovl: fix return value of ovl_fill_super



If kcalloc() failed, the return value of ovl_fill_super() is -EINVAL,
not -ENOMEM. So this patch sets this value to -ENOMEM before calling
kcalloc(), and sets it back to -EINVAL after calling kcalloc().

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

parent 32a3d848

fs/overlayfs/super.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -774,10 +774,12 @@ static int ovl_fill_super(struct super_block sb, void data, int silent)
		goto out_free_lowertmp;
		}

		err = -ENOMEM;
		stack = kcalloc(stacklen, sizeof(struct path), GFP_KERNEL);
		if (!stack)
		goto out_free_lowertmp;

		err = -EINVAL;
		lower = lowertmp;
		for (numlower = 0; numlower < stacklen; numlower++) {
		err = ovl_lower_dir(lower, &stack[numlower], ufs,

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