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path: root/drivers/usb/gadget/epautoconf.c
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Diffstat (limited to 'drivers/usb/gadget/epautoconf.c')
-rw-r--r--drivers/usb/gadget/epautoconf.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 1896489..5b8776e 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -25,6 +25,7 @@
#include <linux/usb/ch9.h>
#include <asm/errno.h>
#include <linux/usb/gadget.h>
+#include <asm/unaligned.h>
#include "gadget_chips.h"
#define isdigit(c) ('0' <= (c) && (c) <= '9')
@@ -127,7 +128,7 @@ static int ep_matches(
* where it's an output parameter representing the full speed limit.
* the usb spec fixes high speed bulk maxpacket at 512 bytes.
*/
- max = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
+ max = 0x7ff & le16_to_cpu(get_unaligned(&desc->wMaxPacketSize));
switch (type) {
case USB_ENDPOINT_XFER_INT:
/* INT: limit 64 bytes full speed, 1024 high speed */
@@ -143,7 +144,8 @@ static int ep_matches(
return 0;
/* BOTH: "high bandwidth" works only at high speed */
- if ((desc->wMaxPacketSize & __constant_cpu_to_le16(3<<11))) {
+ if ((get_unaligned(&desc->wMaxPacketSize) &
+ __constant_cpu_to_le16(3<<11))) {
if (!gadget->is_dualspeed)
return 0;
/* configure your hardware with enough buffering!! */
@@ -176,7 +178,7 @@ static int ep_matches(
/* min() doesn't work on bitfields with gcc-3.5 */
if (size > 64)
size = 64;
- desc->wMaxPacketSize = cpu_to_le16(size);
+ put_unaligned(cpu_to_le16(size), &desc->wMaxPacketSize);
}
return 1;
}