usb: ehci: Fix aliasing issue in EHCI interrupt code

The interrupt endpoint handling code stores the buffer pointer in the QH
padding field. We need to make it the size of a pointer to avoid strict
aliasing issue with the compiler.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 46b535f36f964e430dc8e48d48e98c93e45beafb..d090f0a53e87349ee96a5bfe7d64a917bf153d0e 100644 (file)
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -247,7 +247,7 @@ struct QH {
         * aligned to 32 bytes
         */
        union {
-               uint8_t fill[16];
+               uint32_t fill[4];
                void *buffer;
        };
 };