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f2fs: fix double free of unicode map
In case of retrying fill_super with skip_recovery,
s_encoding for casefold would not be loaded again even though it's
already been freed because it's not NULL.
Set NULL after free to prevent double freeing when unmount.
Fixes: eca4873ee1
("f2fs: Use generic casefolding support")
Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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@ -3918,6 +3918,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
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#ifdef CONFIG_UNICODE
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utf8_unload(sb->s_encoding);
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sb->s_encoding = NULL;
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#endif
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free_options:
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#ifdef CONFIG_QUOTA
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