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-rw-r--r--src/drivers/usb/ehci_debug.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/src/drivers/usb/ehci_debug.c b/src/drivers/usb/ehci_debug.c
index 18d0491b04..c5fb984d54 100644
--- a/src/drivers/usb/ehci_debug.c
+++ b/src/drivers/usb/ehci_debug.c
@@ -66,13 +66,18 @@ static struct ehci_debug_info * glob_dbg_info_p CAR_GLOBAL;
static inline struct ehci_debug_info *dbgp_ehci_info(void)
{
- if (IS_ENABLED(CONFIG_USBDEBUG_IN_PRE_RAM)
- && (ENV_ROMSTAGE || ENV_BOOTBLOCK || ENV_VERSTAGE))
- glob_dbg_info_p =
- (struct ehci_debug_info *)_car_ehci_dbg_info_start;
- if (car_get_var(glob_dbg_info_p) == NULL)
- car_set_var(glob_dbg_info_p, &glob_dbg_info);
-
+ if (car_get_var(glob_dbg_info_p) == NULL) {
+ struct ehci_debug_info *info;
+ if (ENV_BOOTBLOCK || ENV_VERSTAGE || ENV_ROMSTAGE) {
+ /* The message likely does not show if we hit this. */
+ if (sizeof(*info) > _car_ehci_dbg_info_size)
+ die("BUG: Increase ehci_dbg_info reserve in CAR");
+ info = (void *)_car_ehci_dbg_info_start;
+ } else {
+ info = &glob_dbg_info;
+ }
+ car_set_var(glob_dbg_info_p, info);
+ }
return car_get_var(glob_dbg_info_p);
}