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usb: fixes for v5.1-rc2

Browse source 
One deadlock fix on f_hid. NET2280 got a fix on its dequeue
 implementation and a fix for overrun of OUT messages.
 
 DWC3 learned about another Intel product: Comment Lake PCH.
 
 NET2272 got a similar fix to NET2280 on its dequeue implementation.
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Merge tag 'fixes-for-v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v5.1-rc2

One deadlock fix on f_hid. NET2280 got a fix on its dequeue
implementation and a fix for overrun of OUT messages.

DWC3 learned about another Intel product: Comment Lake PCH.

NET2272 got a similar fix to NET2280 on its dequeue implementation.

* tag 'fixes-for-v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  USB: gadget: f_hid: fix deadlock in f_hidg_write()
  usb: gadget: net2272: Fix net2272_dequeue()
  usb: gadget: net2280: Fix net2280_dequeue()
  usb: gadget: net2280: Fix overrun of OUT messages
  usb: dwc3: pci: add support for Comet Lake PCH ID
This commit is contained in:
Greg Kroah-Hartman 2019-03-29 12:56:14 +01:00
parent f276e00279 072684e8c5
commit 87be92b903
4 changed files with 11 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/usb/dwc3/dwc3-pci.c
View file

@ -29,6 +29,7 @@
#define PCI_DEVICE_ID_INTEL_BXT_M 0x1aaa
#define PCI_DEVICE_ID_INTEL_APL 0x5aaa
#define PCI_DEVICE_ID_INTEL_KBP 0xa2b0
#define PCI_DEVICE_ID_INTEL_CMLH 0x02ee
#define PCI_DEVICE_ID_INTEL_GLK 0x31aa
#define PCI_DEVICE_ID_INTEL_CNPLP 0x9dee
#define PCI_DEVICE_ID_INTEL_CNPH 0xa36e
@ -305,6 +306,9 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MRFLD),
(kernel_ulong_t) &dwc3_pci_mrfld_properties, },
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CMLH),
(kernel_ulong_t) &dwc3_pci_intel_properties, },
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTLP),
(kernel_ulong_t) &dwc3_pci_intel_properties, },

6
drivers/usb/gadget/function/f_hid.c
View file

@ -391,20 +391,20 @@ static ssize_t f_hidg_write(struct file *file, const char __user *buffer,
req->complete = f_hidg_req_complete;
req->context = hidg;
spin_unlock_irqrestore(&hidg->write_spinlock, flags);
status = usb_ep_queue(hidg->in_ep, req, GFP_ATOMIC);
if (status < 0) {
ERROR(hidg->func.config->cdev,
"usb_ep_queue error on int endpoint %zd\n", status);
goto release_write_pending_unlocked;
goto release_write_pending;
} else {
status = count;
}
spin_unlock_irqrestore(&hidg->write_spinlock, flags);
return status;
release_write_pending:
spin_lock_irqsave(&hidg->write_spinlock, flags);
release_write_pending_unlocked:
hidg->write_pending = 0;
spin_unlock_irqrestore(&hidg->write_spinlock, flags);

1
drivers/usb/gadget/udc/net2272.c
View file

@ -945,6 +945,7 @@ net2272_dequeue(struct usb_ep *_ep, struct usb_request *_req)
break;
}
if (&req->req != _req) {
ep->stopped = stopped;
spin_unlock_irqrestore(&ep->dev->lock, flags);
return -EINVAL;
}

8
drivers/usb/gadget/udc/net2280.c
View file

@ -866,9 +866,6 @@ static void start_queue(struct net2280_ep *ep, u32 dmactl, u32 td_dma)
(void) readl(&ep->dev->pci->pcimstctl);
writel(BIT(DMA_START), &dma->dmastat);
if (!ep->is_in)
stop_out_naking(ep);
}
static void start_dma(struct net2280_ep *ep, struct net2280_request *req)
@ -907,6 +904,7 @@ static void start_dma(struct net2280_ep *ep, struct net2280_request *req)
writel(BIT(DMA_START), &dma->dmastat);
return;
}
stop_out_naking(ep);
}
tmp = dmactl_default;
@ -1275,9 +1273,9 @@ static int net2280_dequeue(struct usb_ep *_ep, struct usb_request *_req)
break;
}
if (&req->req != _req) {
ep->stopped = stopped;
spin_unlock_irqrestore(&ep->dev->lock, flags);
dev_err(&ep->dev->pdev->dev, "%s: Request mismatch\n",
__func__);
ep_dbg(ep->dev, "%s: Request mismatch\n", __func__);
return -EINVAL;
}