Return error for failing allocation

Fix case, where final strdup would have failed and it would miss to return
failure for this case and return success and NULL pointer.

1 files changed, 3 insertions, 1 deletions

diff --git a/libdm/libdm-string.c b/libdm/libdm-string.c
index 67eabf5d..d9b444c1 100644
--- a/libdm/libdm-string.c
+++ b/libdm/libdm-string.c
@@ -156,7 +156,9 @@ int dm_asprintf(char **result, const char *format, ...)
 		}
 	}
 
-	*result = dm_strdup(buf);
+	if (!(*result = dm_strdup(buf)))
+		n = -2; /* return -1 */
+
 	dm_free(buf);
 	return n + 1;
 }