Author: hselasky
Date: Thu Oct 2 16:56:00 2014
New Revision: 272422
URL: https://svnweb.freebsd.org/changeset/base/272422
Log:
Make sure we always set the maximum number of valid contexts.
MFC after: 3 days
Modified:
head/sys/dev/usb/controller/xhci.c
Modified: head/sys/dev/usb/controller/xhci.c
==============================================================================
--- head/sys/dev/usb/controller/xhci.c Thu Oct 2 16:49:22 2014
(r272421)
+++ head/sys/dev/usb/controller/xhci.c Thu Oct 2 16:56:00 2014
(r272422)
@@ -2271,14 +2271,17 @@ xhci_configure_mask(struct usb_device *u
/* adjust */
x--;
- /* figure out maximum */
- if (x > sc->sc_hw.devs[index].context_num) {
+ /* figure out the maximum number of contexts */
+ if (x > sc->sc_hw.devs[index].context_num)
sc->sc_hw.devs[index].context_num = x;
- temp = xhci_ctx_get_le32(sc, &pinp->ctx_slot.dwSctx0);
- temp &= ~XHCI_SCTX_0_CTX_NUM_SET(31);
- temp |= XHCI_SCTX_0_CTX_NUM_SET(x + 1);
- xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp);
- }
+ else
+ x = sc->sc_hw.devs[index].context_num;
+
+ /* update number of contexts */
+ temp = xhci_ctx_get_le32(sc, &pinp->ctx_slot.dwSctx0);
+ temp &= ~XHCI_SCTX_0_CTX_NUM_SET(31);
+ temp |= XHCI_SCTX_0_CTX_NUM_SET(x + 1);
+ xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp);
}
return (0);
}
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