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xfs: check the return value of sb_min_blocksize() in xfs_fs_fill_super

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sb_min_blocksize() may return 0. Check its return value to avoid the
filesystem super block when sb->s_blocksize is 0.

Cc: stable@vger.kernel.org # v6.15
Fixes: a64e5a5960 ("bdev: add back PAGE_SIZE block size validation for sb_set_blocksize()")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Yongpeng Yang <yangyongpeng@xiaomi.com>
Link: https://patch.msgid.link/20251104125009.2111925-5-yangyongpeng.storage@gmail.com
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Yongpeng Yang
2025-11-04 20:50:09 +08:00
committed by Christian Brauner
parent e106e269c5
commit 124af0868e
1 changed files with 4 additions and 1 deletions
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5
fs/xfs/xfs_super.c
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@@ -1662,7 +1662,10 @@ xfs_fs_fill_super(
if (error)
return error;
sb_min_blocksize(sb, BBSIZE);
if (!sb_min_blocksize(sb, BBSIZE)) {
xfs_err(mp, "unable to set blocksize");
return -EINVAL;
}
sb->s_xattr = xfs_xattr_handlers;
sb->s_export_op = &xfs_export_operations;
#ifdef CONFIG_XFS_QUOTA