[PATCH 4.15 142/202] afs: Add missing afs_put_cell()

4.15-stable review patch. If anyone has any objections, please let me know. -- From: David Howells commit e44150157f42219fa5c074588efdb31ccfb197fc upstream. afs_alloc_volume() needs to release the cell ref it obtained in the case of an error. Fix this by

[PATCH 4.15 142/202] afs: Add missing afs_put_cell()

4.15-stable review patch. If anyone has any objections, please let me know. -- From: David Howells commit e44150157f42219fa5c074588efdb31ccfb197fc upstream. afs_alloc_volume() needs to release the cell ref it obtained in the case of an error. Fix this by adding an