[PATCH 04/10] kvx: bootm: enforce existence of device tree

[Ahmad Fatoum]

Later commits will allow users to skip providing a device tree
when an empty file is passed, e.g. /dev/null.

Maintain existing behavior for kvx by translating the NULL return
from bootm_get_devicetree() that indicates this to an error pointer.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 arch/kvx/lib/bootm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/kvx/lib/bootm.c b/arch/kvx/lib/bootm.c
index 33d714e873bc..6eba4054e500 100644
--- a/arch/kvx/lib/bootm.c
+++ b/arch/kvx/lib/bootm.c
@@ -84,6 +84,8 @@ static int do_boot_elf(struct image_data *data, struct elf_image *elf)
 	}
 
 	fdt = bootm_get_devicetree(data);
+	if (!fdt)
+		fdt = ERR_PTR(-EINVAL);
 	if (IS_ERR(fdt)) {
 		printf("Failed to load dtb\n");
 		return PTR_ERR(fdt);
-- 
2.39.5