[PATCH v4 01/14] cmd: aes: fix DM operation handling

[James Hilliard <james.hilliard1@gmail.com>]

The DM AES command path takes operation-specific arguments after the
common arguments. argv[1] holds the mode, "ecb" or "cbc", while argv[2]
holds the requested operation, "enc" or "dec".

The DM path checked argv[1] for the operation, so the ecb and cbc
commands always returned CMD_RET_USAGE before running. Parse argv[2]
instead.

Fixes: b01444aa14cf ("cmd: aes: Add support for DM AES drivers")
Reviewed-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
---
Changes v1 -> v2:
  - Limit the patch to the argv parsing fix  (suggested by Simon Glass)
  - State that the commands always returned usage  (suggested by Simon Glass)
  - Add a Fixes tag  (suggested by Simon Glass)
---
 cmd/aes.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/cmd/aes.c b/cmd/aes.c
index 3fd83013ffe..edcd87cf11b 100644
--- a/cmd/aes.c
+++ b/cmd/aes.c
@@ -175,9 +175,9 @@ int cmd_aes_ecb(int argc, char *const argv[], u32 key_len)
 	if (ret)
 		return ret;
 
-	if (!strncmp(argv[1], "enc", 3))
+	if (!strncmp(argv[2], "enc", 3))
 		enc = 1;
-	else if (!strncmp(argv[1], "dec", 3))
+	else if (!strncmp(argv[2], "dec", 3))
 		enc = 0;
 	else
 		return CMD_RET_USAGE;
@@ -223,9 +223,9 @@ int cmd_aes_cbc(int argc, char *const argv[], u32 key_len)
 	if (ret)
 		return ret;
 
-	if (!strncmp(argv[1], "enc", 3))
+	if (!strncmp(argv[2], "enc", 3))
 		enc = 1;
-	else if (!strncmp(argv[1], "dec", 3))
+	else if (!strncmp(argv[2], "dec", 3))
 		enc = 0;
 	else
 		return CMD_RET_USAGE;

-- 
2.53.0