fw_env: Add missing write failure check
If flash_write fails, whilst we propagate this up to our caller, we need
to avoid swapping in the new file (if we're on a filesystem) in this
case.
Fixes: dbc34323796b ("tools: env: Implement atomic replace for filesystem")
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c
index cfada0e..eef12dd 100644
--- a/tools/env/fw_env.c
+++ b/tools/env/fw_env.c
@@ -1317,7 +1317,7 @@
rc = -1;
}
- if (target_temp) {
+ if (rc >= 0 && target_temp) {
int dir_fd;
dir_fd = open(dname, O_DIRECTORY | O_RDONLY);