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usb: dwc3: core: fix incorrect usage of resource pointer

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Populate the resources for xhci afresh instead of directly using the
*struct resource* of core. *resource* structure has parent, sibling,
child pointers which should be filled only by resource API's. By
directly using the *resource* pointer of core in xhci, these parent,
sibling, child pointers are already populated even before
*platform_device_add* causing side effects.

Cc: stable@vger.kernel.org # v3.4, v3.5
Reported-by: Ruchika Kharwar <ruchika@ti.com>
Tested-by: Moiz Sonasath <m-sonasath@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Kishon Vijay Abraham I 2012-08-21 14:56:16 +05:30 committed by Felipe Balbi
parent 7effdbd651
commit 066618bc35
1 changed files with 7 additions and 2 deletions
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9
drivers/usb/dwc3/core.c
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@ -436,16 +436,21 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
dev_err(dev, "missing IRQ\n");
return -ENODEV;
}
dwc->xhci_resources[1] = *res;
dwc->xhci_resources[1].start = res->start;
dwc->xhci_resources[1].end = res->end;
dwc->xhci_resources[1].flags = res->flags;
dwc->xhci_resources[1].name = res->name;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "missing memory resource\n");
return -ENODEV;
}
dwc->xhci_resources[0] = *res;
dwc->xhci_resources[0].start = res->start;
dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
DWC3_XHCI_REGS_END;
dwc->xhci_resources[0].flags = res->flags;
dwc->xhci_resources[0].name = res->name;
/*
* Request memory region but exclude xHCI regs,