This reverts commit f2538f999345405f7d2e1194c0c8efa4e11f7b3a. The patch stopped JFFS2 from being able to mount an existing filesystem with the following errors:

jffs2: error: (77) jffs2_build_inode_fragtree: Add node to tree failed -22 jffs2: error: (77) jffs2_do_read_inode_internal: Failed to build final fragtree for inode #5377: error -22

Fixes: f2538f999345 ("jffs2: Fix possible null-pointer dereferences...") Cc: stable@vger.kernel.org Suggested-by: Hou Tao houtao1@huawei.com Signed-off-by: Joel Stanley joel@jms.id.au --- 5.4 cannot mount (some?) jffs2 filesystems without this fix. Hou pointed this out[1] a while back but the fix didn't make it in. It's still broken in -next.

[1] https://lore.kernel.org/lkml/2758feea-8d6e-c690-5cac-d42213f2024b@huawei.com...

fs/jffs2/nodelist.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c index 021a4a2190ee..b86c78d178c6 100644 --- a/fs/jffs2/nodelist.c +++ b/fs/jffs2/nodelist.c @@ -226,7 +226,7 @@ static int jffs2_add_frag_to_fragtree(struct jffs2_sb_info *c, struct rb_root *r lastend = this->ofs + this->size; } else { dbg_fragtree2("lookup gave no frag\n"); - return -EINVAL; + lastend = 0; }

/* See if we ran off the end of the fragtree */