* [PATCH] cmd: mdio: check argc for extended mode
@ 2026-10-23 22:01 Maxin B. John
2026-10-26 16:14 ` Simon Glass
0 siblings, 1 reply; 2+ messages in thread
From: Maxin B. John @ 2026-10-23 22:01 UTC (permalink / raw)
To: u-boot; +Cc: trini
Check argc before accessing argv[2] in extended MDIO operations
(rx/wx).
Return CMD_RET_USAGE if the PHY device name is missing.
Signed-off-by: Maxin B. John <maxin.john@gmail.com>
---
cmd/mdio.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/cmd/mdio.c b/cmd/mdio.c
index c0a87087d315..1d73a77ece35 100644
--- a/cmd/mdio.c
+++ b/cmd/mdio.c
@@ -230,6 +230,9 @@ static int do_mdio(struct cmd_tbl *cmdtp, int flag, int argc,
if (strlen(argv[1]) > 1) {
op[1] = argv[1][1];
if (op[1] == 'x') {
+ if (argc < 3)
+ return CMD_RET_USAGE;
+
phydev = mdio_phydev_for_ethname(argv[2]);
if (phydev) {
--
2.47.3
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] cmd: mdio: check argc for extended mode
2026-10-23 22:01 [PATCH] cmd: mdio: check argc for extended mode Maxin B. John
@ 2026-10-26 16:14 ` Simon Glass
0 siblings, 0 replies; 2+ messages in thread
From: Simon Glass @ 2026-10-26 16:14 UTC (permalink / raw)
To: maxin.john; +Cc: u-boot, trini
On 2026-10-23T22:01:33, Maxin B. John <maxin.john@gmail.com> wrote:
> cmd: mdio: check argc for extended mode
>
> Check argc before accessing argv[2] in extended MDIO operations
> (rx/wx).
>
> Return CMD_RET_USAGE if the PHY device name is missing.
>
> Signed-off-by: Maxin B. John <maxin.john@gmail.com>
>
> cmd/mdio.c | 3 +++
> 1 file changed, 3 insertions(+)
Reviewed-by: Simon Glass <sjg@chromium.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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