erofs: fix error return code in erofs_read_superblock()
commit 0508c1ad upstream. 'ret' will be overwritten to 0 if erofs_sb_has_sb_chksum() return true, thus 0 will return in some error handling cases. Fix to return negative error code -EINVAL instead of 0. Link: https://lore.kernel.org/r/20210519141657.3062715-1-weiyongjun1@huawei.com Fixes: b858a484 ("erofs: support superblock checksum") Cc: stable <stable@vger.kernel.org> # 5.5+ Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Gao Xiang <xiang@kernel.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Gao Xiang <xiang@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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3adb14e4
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