xen/arm: domain_build: Propagate return code of map_irq_to_domain()

From map_dt_irq_to_domain() we are assigning a return code of
map_irq_to_domain() to a variable without checking it for an error.
Fix it by propagating the return code directly since this is the last
call.

Fixes: 467e5cbb2ffc ("xen: arm: consolidate mmio and irq mapping to dom0")
Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Henry Wang <Henry.Wang@arm.com>
Reviewed-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index f80fdd1af2068b0e7e27b9978b791b5e5fe3fb6b..9dee1bb8f21caea671cc6f528c8717cf0f2a4440 100644 (file)
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -2320,7 +2320,7 @@ static int __init map_dt_irq_to_domain(const struct dt_device_node *dev,
 
     res = map_irq_to_domain(d, irq, !mr_data->skip_mapping, dt_node_name(dev));
 
-    return 0;
+    return res;
 }
 
 int __init map_range_to_domain(const struct dt_device_node *dev,