usb: Add missing guard around env_get() in usb_hub
The env_get() might be undefined in case ENV_SUPPORT is disabled,
which may happen e.g. in SPL. Add missing ifdef guard around the
env_get() to prevent build failure.
Signed-off-by: Marek Vasut <marex@denx.de>
Tested-by: Fabio Estevam <festevam@denx.de>
diff --git a/common/usb_hub.c b/common/usb_hub.c
index d736389..95f1449 100644
--- a/common/usb_hub.c
+++ b/common/usb_hub.c
@@ -168,7 +168,7 @@
int i;
struct usb_device *dev;
unsigned pgood_delay = hub->desc.bPwrOn2PwrGood * 2;
- const char *env;
+ const char __maybe_unused *env;
dev = hub->pusb_dev;
@@ -193,10 +193,12 @@
* but allow this time to be increased via env variable as some
* devices break the spec and require longer warm-up times
*/
+#if CONFIG_IS_ENABLED(ENV_SUPPORT)
env = env_get("usb_pgood_delay");
if (env)
pgood_delay = max(pgood_delay,
(unsigned)simple_strtol(env, NULL, 0));
+#endif
debug("pgood_delay=%dms\n", pgood_delay);
/*