x86/resctrl: Fix kfree() of the wrong type in domain_add_cpu()

Commit in Fixes separated the architecture specific and filesystem parts
of the resctrl domain structures.

This left the error paths in domain_add_cpu() kfree()ing the memory with
the wrong type.

This will cause a problem if someone adds a new member to struct
rdt_hw_domain meaning d_resctrl is no longer the first member.

Fixes: 792e0f6f789b ("x86/resctrl: Split struct rdt_domain")
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lkml.kernel.org/r/20210917165924.28254-1-james.morse@arm.com

diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index b5de5a6..bb1c3f5 100644 (file)
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -527,14 +527,14 @@ static void domain_add_cpu(int cpu, struct rdt_resource *r)
        rdt_domain_reconfigure_cdp(r);
 
        if (r->alloc_capable && domain_setup_ctrlval(r, d)) {
-               kfree(d);
+               kfree(hw_dom);
                return;
        }
 
        if (r->mon_capable && domain_setup_mon_state(r, d)) {
                kfree(hw_dom->ctrl_val);
                kfree(hw_dom->mbps_val);
-               kfree(d);
+               kfree(hw_dom);
                return;
        }