[PATCH] x86/resctrl: fix a NULL vs IS_ERR() static checker warning

[Dan Carpenter]

The callers don't expect *d_cdp to be set to an error pointer, they only
check for NULL.  This leads to a static checker warning:

    arch/x86/kernel/cpu/resctrl/rdtgroup.c:2648 __init_one_rdt_domain()
    warn: 'd_cdp' could be an error pointer

I don't think this will lead to a real life bug, but it's easy enough to
change it to be NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 arch/x86/kernel/cpu/resctrl/rdtgroup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 23b4b61319d3f..3f844f14fc0a6 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -1117,6 +1117,7 @@ static int rdt_cdp_peer_get(struct rdt_resource *r, struct rdt_domain *d,
 	_d_cdp = rdt_find_domain(_r_cdp, d->id, NULL);
 	if (WARN_ON(IS_ERR_OR_NULL(_d_cdp))) {
 		_r_cdp = NULL;
+		_d_cdp = NULL;
 		ret = -EINVAL;
 	}
 
-- 
2.26.2