diff mbox series

[18/18] usb: ohci-at91: Add `ohci_t` field in `ohci_at91_priv`

Message ID 20221207131447.40590-19-sergiu.moga@microchip.com
State Superseded
Delegated to: Eugen Hristev
Headers show
Series Add USB on SAM9X60, SAMA7G5 and SAMA5D2 boards | expand

Commit Message

Sergiu Moga Dec. 7, 2022, 1:14 p.m. UTC 
From: Cristian Birsan <cristian.birsan@microchip.com>

The `ohci_register` function expects that the OHCI driver's
priv is a struct whose first field is of type `ohci_t`.
The original conversion to DM did not have it and this
inconsistency revealed itself whenever U-Boot required
multiple memory allocations resulting in a memory overwrite
of where this field would supposedly be.

Thus, add this missing field and automatically increase
the implicit size of the driver's priv to avoid whatever
future memory allocations may take place from overwriting
it.

Fixes: de1cf0a9c6 ("drivers: usb: ohci-at91: Enable OHCI functionality and register into DM")
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
Tested-by: Mihai Sain <mihai.sain@microchip.com>
---
 drivers/usb/host/ohci-at91.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 43d3ed3bde..b53d80e3f5 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -89,6 +89,7 @@  struct at91_usbh_data {
 };
 
 struct ohci_at91_priv {
+	ohci_t ohci;
 	struct clk *iclk;
 	struct clk *fclk;
 	struct clk *hclk;