[PATCH 1/2] xen/arm: domain_build: Check return code of domain_vpl011_init

[Michal Orzel]

We are assigning return code of domain_vpl011_init() to a variable
without checking it for an error. Fix it.

Fixes: 3580c8b2dfc3 ("xen/arm: if direct-map domain use native UART address and 
IRQ number for vPL011")
Signed-off-by: Michal Orzel <michal.or...@amd.com>
---
 xen/arch/arm/domain_build.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 9707eb7b1bb1..3195c5b6d6ac 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -3826,7 +3826,11 @@ static int __init construct_domU(struct domain *d,
      * shall be done first.
      */
     if ( kinfo.vpl011 )
+    {
         rc = domain_vpl011_init(d, NULL);
+        if ( rc < 0 )
+            return rc;
+    }
 
     rc = prepare_dtb_domU(d, &kinfo);
     if ( rc < 0 )
-- 
2.25.1