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Commit 313684c4 authored by Geliang Tang's avatar Geliang Tang Committed by Miklos Szeredi
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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: default avatarGeliang Tang <geliangtang@gmail.com>
Signed-off-by: default avatarMiklos 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,