android: Fix error handling in adapter_ready

On error negative value is passed to adapter_ready callback. This fix
passing negative error code to strerror.

diff --git a/android/main.c b/android/main.c
index 93870d0..36cc8aa 100644 (file)
--- a/android/main.c
+++ b/android/main.c
@@ -465,8 +465,8 @@ static GOptionEntry options[] = {
 
 static void adapter_ready(int err)
 {
-       if (err) {
-               error("Adapter initialization failed: %s", strerror(err));
+       if (err < 0) {
+               error("Adapter initialization failed: %s", strerror(-err));
                exit(EXIT_FAILURE);
        }