Messages in this thread Patch in this message | | | From | "Felipe F. Tonello" <> | Subject | [PATCH 1/4] usb: gadget: f_midi: fixed endianness when using wMaxPacketSize | Date | Tue, 26 Jul 2016 00:15:03 +0100 |
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USB spec specifies wMaxPacketSize to be little endian (as other properties), so when using this variable in the driver we should convert to the current CPU endianness if necessary.
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> --- drivers/usb/gadget/function/f_midi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 58fc199a18ec..a83d852b1da5 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -362,7 +362,7 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt) struct usb_request *req = midi_alloc_ep_req(midi->out_ep, max_t(unsigned, midi->buflen, - bulk_out_desc.wMaxPacketSize)); + le16_to_cpu(bulk_out_desc.wMaxPacketSize))); if (req == NULL) return -ENOMEM; -- 2.9.2
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