Calling 'mdio read ...' currently leads to a data abort when no mdio
bus is found.
To fix this, check if 'bus' is a valid pointer before accessing it.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschm...@gmail.com>
---
cmd/mdio.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/cmd/mdio.c b/cmd/mdio.c
index 5e219f699d..e1f771d3ed 100644
--- a/cmd/mdio.c
+++ b/cmd/mdio.c
@@ -263,6 +263,11 @@ static int do_mdio(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
break;
}
+ if (!bus) {
+ puts("No MDIO bus found\n");
+ return CMD_RET_FAILURE;
+ }
+
if (op[0] == 'l') {
mdio_list_devices();
--
2.20.1
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