[PATCH 2/3] image-host: fix 'unknown error' error message

[al . kochet]

From: Alexander Kochetkov <al.koc...@gmail.com>

Fix error message like this:
Can't add verification data for node 'fdt-1' (<unknown error>)

We get unknown error because we decode error as fdt error
but actually it is system error.

Signed-off-by: Alexander Kochetkov <al.koc...@gmail.com>
---
 tools/image-host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/image-host.c b/tools/image-host.c
index 7bfc0cb6b1..ac14d9aa86 100644
--- a/tools/image-host.c
+++ b/tools/image-host.c
@@ -1333,7 +1333,7 @@ int fit_add_verification_data(const char *keydir, const 
char *keyfile,
                if (ret) {
                        fprintf(stderr, "Can't add verification data for node 
'%s' (%s)\n",
                                fdt_get_name(fit, noffset, NULL),
-                               fdt_strerror(ret));
+                               strerror(-ret));
                        return ret;
                }
        }
-- 
2.17.1