In case of the fs mounted to '/' the root dentry of the mounted filesystem is the place where it's mounted itself, so sb->s_root is the same as fsdev->vfsmount.mountpoint. In that case make sure we only access it before it has been killed in dentry_delete_subtree().
Signed-off-by: Sascha Hauer <[email protected]> --- fs/fs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/fs.c b/fs/fs.c index a6c6f0cc93..5784e9c1f3 100644 --- a/fs/fs.c +++ b/fs/fs.c @@ -667,14 +667,14 @@ static void fs_remove(struct device_d *dev) if (fsdev->loop && fsdev->cdev) cdev_remove_loop(fsdev->cdev); + if (fsdev->vfsmount.mountpoint) + fsdev->vfsmount.mountpoint->d_flags &= ~DCACHE_MOUNTED; + dentry_delete_subtree(sb, sb->s_root); list_for_each_entry_safe(inode, tmp, &sb->s_inodes, i_sb_list) destroy_inode(inode); - if (fsdev->vfsmount.mountpoint) - fsdev->vfsmount.mountpoint->d_flags &= ~DCACHE_MOUNTED; - mntput(fsdev->vfsmount.parent); free(fsdev->backingstore); -- 2.28.0 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
