Tidy up error checking and fix bug in hash command
There are two problems:
1. The argument count needs to be checked before argv is used
2. When verify is not enabled, we need to define a constant zero value
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/cmd_hash.c b/common/cmd_hash.c
index 689c608..eb6a338 100644
--- a/common/cmd_hash.c
+++ b/common/cmd_hash.c
@@ -32,11 +32,15 @@
#ifdef CONFIG_HASH_VERIFY
int verify = 0;
+ if (argc < 4)
+ return CMD_RET_USAGE;
if (!strcmp(argv[1], "-v")) {
verify = 1;
argc--;
argv++;
}
+#else
+ const int verify = 0;
#endif
/* Move forward to 'algorithm' parameter */
argc--;