erofs: fix error return code in erofs_read_superblock()

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'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: b858a4844c ("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>

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Wei Yongjun 2021-05-19 14:16:57 +00:00 • committed by Gao Xiang

parent 614124bea7

commit 0508c1ad0f

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fs/erofs/super.c

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