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usb: gadget: f_gsi: Fix alternate index returned by gsi_get_alt

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RNDIS, RMNET and DPL only supports alternate index 0. Instead of
returning value of data_interface_up which is used for interfaces
supporting non-zero alternate index, simply return 0.

Change-Id: I7fe6c7c636207cd4f85d468f61c87e5a4e12b0ac
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
This commit is contained in:
Hemant Kumar 2016-08-17 14:43:10 -07:00
parent 008f057bba
commit 98aecd6043
1 changed files with 4 additions and 1 deletions
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5
drivers/usb/gadget/function/f_gsi.c
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@ -1702,7 +1702,10 @@ static int gsi_get_alt(struct usb_function *f, unsigned intf)
{
struct f_gsi *gsi = func_to_gsi(f);
if (intf == gsi->ctrl_id)
/* RNDIS, RMNET and DPL only support alt 0*/
if (intf == gsi->ctrl_id || gsi->prot_id == IPA_USB_RNDIS ||
gsi->prot_id == IPA_USB_RMNET ||
gsi->prot_id == IPA_USB_DIAG)
return 0;
else if (intf == gsi->data_id)
return gsi->data_interface_up;