Re: [PATCH v3 1/2] xen/xenbus: reference count registered modules
From: JÃrgen GroÃ
Date: Wed Dec 04 2019 - 05:36:37 EST
On 02.12.19 12:41, Paul Durrant wrote:
To prevent a PV driver module being removed whilst attached to its other
end, and hence xenbus calling into potentially invalid text, take a
reference on the module before calling the probe() method (dropping it if
unsuccessful) and drop the reference after returning from the remove()
method.
Suggested-by: Jan Beulich <jbeulich@xxxxxxxx>
Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>
Pushed to xen/tip.git for-linus-5.5b
Juergen