diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0207-dwc_otg-Don-t-free-qh-align-buffers-in-atomic-contex.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0207-dwc_otg-Don-t-free-qh-align-buffers-in-atomic-contex.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0207-dwc_otg-Don-t-free-qh-align-buffers-in-atomic-contex.patch b/target/linux/brcm2708/patches-4.4/0207-dwc_otg-Don-t-free-qh-align-buffers-in-atomic-contex.patch new file mode 100644 index 0000000000..201cdc834a --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0207-dwc_otg-Don-t-free-qh-align-buffers-in-atomic-contex.patch @@ -0,0 +1,44 @@ +From 4558f488edf41daddd4bceed975f3af8cee89033 Mon Sep 17 00:00:00 2001 +From: P33M <P33M@github.com> +Date: Fri, 18 Mar 2016 17:38:37 +0000 +Subject: [PATCH 207/232] dwc_otg: Don't free qh align buffers in atomic + context + +--- + drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c ++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c +@@ -56,6 +56,9 @@ void dwc_otg_hcd_qh_free(dwc_otg_hcd_t * + { + dwc_otg_qtd_t *qtd, *qtd_tmp; + dwc_irqflags_t flags; ++ uint32_t buf_size = 0; ++ uint8_t *align_buf_virt = NULL; ++ dwc_dma_t align_buf_dma; + + /* Free each QTD in the QTD list */ + DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags); +@@ -67,17 +70,19 @@ void dwc_otg_hcd_qh_free(dwc_otg_hcd_t * + if (hcd->core_if->dma_desc_enable) { + dwc_otg_hcd_qh_free_ddma(hcd, qh); + } else if (qh->dw_align_buf) { +- uint32_t buf_size; + if (qh->ep_type == UE_ISOCHRONOUS) { + buf_size = 4096; + } else { + buf_size = hcd->core_if->core_params->max_transfer_size; + } +- DWC_DMA_FREE(buf_size, qh->dw_align_buf, qh->dw_align_buf_dma); ++ align_buf_virt = qh->dw_align_buf; ++ align_buf_dma = qh->dw_align_buf_dma; + } + + DWC_FREE(qh); + DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags); ++ if (align_buf_virt) ++ DWC_DMA_FREE(buf_size, align_buf_virt, align_buf_dma); + return; + } + |