[PATCH 7.1 1377/2077] afs: Fix misplaced inc of net->cells_outstanding

[Greg Kroah-Hartman]

7.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Howells <dhowells at redhat.com>

[ Upstream commit c9c3b615a462a4023bd148f02c564e175ed10502 ]

Fix net->cells_outstanding being incremented before the check for failure
of idr_alloc_cyclic(), leaving the count incremented on error.

Fixes: 88c853c3f5c0 ("afs: Fix cell refcounting by splitting the usage counter")
Reported-by: Hillf Danton <hdanton at sina.com>
Signed-off-by: David Howells <dhowells at redhat.com>
Link: https://patch.msgid.link/20260622090856.2746629-12-dhowells@redhat.com
cc: Marc Dionne <marc.dionne at auristor.com>
cc: linux-afs at lists.infradead.org
Signed-off-by: Christian Brauner (Amutable) <brauner at kernel.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 fs/afs/cell.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 9738684dbdd268..e0fab1609f2787 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -205,11 +205,11 @@ static struct afs_cell *afs_alloc_cell(struct afs_net *net,
 	cell->dns_source = vllist->source;
 	cell->dns_status = vllist->status;
 	smp_store_release(&cell->dns_lookup_count, 1); /* vs source/status */
-	atomic_inc(&net->cells_outstanding);
 	ret = idr_alloc_cyclic(&net->cells_dyn_ino, cell,
 			       2, INT_MAX / 2, GFP_KERNEL);
 	if (ret < 0)
 		goto error;
+	atomic_inc(&net->cells_outstanding);
 	cell->dynroot_ino = ret;
 	cell->debug_id = atomic_inc_return(&cell_debug_id);
 
-- 
2.53.0