diff options
| -rw-r--r-- | drivers/usb/dwc3/dwc3-exynos.c | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-pci.c | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 16 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 18 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_host.h | 1 |
5 files changed, 23 insertions, 16 deletions
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index 929e7dd6e58b..8ce9d7fd6cfc 100644 --- a/drivers/usb/dwc3/dwc3-exynos.c +++ b/drivers/usb/dwc3/dwc3-exynos.c @@ -164,9 +164,9 @@ static int dwc3_exynos_remove(struct platform_device *pdev) { struct dwc3_exynos *exynos = platform_get_drvdata(pdev); + device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child); platform_device_unregister(exynos->usb2_phy); platform_device_unregister(exynos->usb3_phy); - device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child); clk_disable_unprepare(exynos->clk); diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 227d4a7acad7..eba9e2baf32b 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -196,9 +196,9 @@ static void dwc3_pci_remove(struct pci_dev *pci) { struct dwc3_pci *glue = pci_get_drvdata(pci); + platform_device_unregister(glue->dwc3); platform_device_unregister(glue->usb2_phy); platform_device_unregister(glue->usb3_phy); - platform_device_unregister(glue->dwc3); pci_set_drvdata(pci, NULL); pci_disable_device(pci); } diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 2b6e7e001207..b5e5b35df49c 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1706,11 +1706,19 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc) dep = dwc->eps[epnum]; if (!dep) continue; - - dwc3_free_trb_pool(dep); - - if (epnum != 0 && epnum != 1) + /* + * Physical endpoints 0 and 1 are special; they form the + * bi-directional USB endpoint 0. + * + * For those two physical endpoints, we don't allocate a TRB + * pool nor do we add them the endpoints list. Due to that, we + * shouldn't do these two operations otherwise we would end up + * with all sorts of bugs when removing dwc3.ko. + */ + if (epnum != 0 && epnum != 1) { + dwc3_free_trb_pool(dep); list_del(&dep->endpoint.ep_list); + } kfree(dep); } diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 8914dec49f01..9d3044bdebe5 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -1232,7 +1232,6 @@ void musb_host_tx(struct musb *musb, u8 epnum) void __iomem *mbase = musb->mregs; struct dma_channel *dma; bool transfer_pending = false; - static bool use_sg; musb_ep_select(mbase, epnum); tx_csr = musb_readw(epio, MUSB_TXCSR); @@ -1463,9 +1462,9 @@ done: * NULL. */ if (!urb->transfer_buffer) - use_sg = true; + qh->use_sg = true; - if (use_sg) { + if (qh->use_sg) { /* sg_miter_start is already done in musb_ep_program */ if (!sg_miter_next(&qh->sg_miter)) { dev_err(musb->controller, "error: sg list empty\n"); @@ -1484,9 +1483,9 @@ done: qh->segsize = length; - if (use_sg) { + if (qh->use_sg) { if (offset + length >= urb->transfer_buffer_length) - use_sg = false; + qh->use_sg = false; } musb_ep_select(mbase, epnum); @@ -1552,7 +1551,6 @@ void musb_host_rx(struct musb *musb, u8 epnum) bool done = false; u32 status; struct dma_channel *dma; - static bool use_sg; unsigned int sg_flags = SG_MITER_ATOMIC | SG_MITER_TO_SG; musb_ep_select(mbase, epnum); @@ -1878,12 +1876,12 @@ void musb_host_rx(struct musb *musb, u8 epnum) * NULL. */ if (!urb->transfer_buffer) { - use_sg = true; + qh->use_sg = true; sg_miter_start(&qh->sg_miter, urb->sg, 1, sg_flags); } - if (use_sg) { + if (qh->use_sg) { if (!sg_miter_next(&qh->sg_miter)) { dev_err(musb->controller, "error: sg list empty\n"); sg_miter_stop(&qh->sg_miter); @@ -1913,8 +1911,8 @@ finish: urb->actual_length += xfer_len; qh->offset += xfer_len; if (done) { - if (use_sg) - use_sg = false; + if (qh->use_sg) + qh->use_sg = false; if (urb->status == -EINPROGRESS) urb->status = status; diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index 5a9c8feec10c..738f7eb60df9 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -74,6 +74,7 @@ struct musb_qh { u16 frame; /* for periodic schedule */ unsigned iso_idx; /* in urb->iso_frame_desc[] */ struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */ + bool use_sg; /* to track urb using sglist */ }; /* map from control or bulk queue head to the first qh on that ring */ |
