During "modprobe -r pch_udc" we receive a warning about freeing a "bad dma"
request.
* Properly free the requests from the PCI pool they where allocated in.
Signed-off-by: Mark Ferrell <mferr...@uplogix.com>
---
drivers/usb/gadget/pch_udc.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c
index 24174e1..2fe5f46 100644
--- a/drivers/usb/gadget/pch_udc.c
+++ b/drivers/usb/gadget/pch_udc.c
@@ -3043,8 +3043,14 @@ static void pch_udc_remove(struct pci_dev *pdev)
dev_err(&pdev->dev,
"%s: gadget driver still bound!!!\n", __func__);
/* dma pool cleanup */
- if (dev->data_requests)
+ if (dev->data_requests) {
+ if (dev->ep[UDC_EP0OUT_IDX].td_data) {
+ pci_pool_free(dev->data_requests,
+ dev->ep[UDC_EP0OUT_IDX].td_data,
+ dev->ep[UDC_EP0OUT_IDX].td_data_phys);
+ }
pci_pool_destroy(dev->data_requests);
+ }
if (dev->stp_requests) {
/* cleanup DMA desc's for ep0in */
@@ -3053,11 +3059,6 @@ static void pch_udc_remove(struct pci_dev *pdev)
dev->ep[UDC_EP0OUT_IDX].td_stp,
dev->ep[UDC_EP0OUT_IDX].td_stp_phys);
}
- if (dev->ep[UDC_EP0OUT_IDX].td_data) {
- pci_pool_free(dev->stp_requests,
- dev->ep[UDC_EP0OUT_IDX].td_data,
- dev->ep[UDC_EP0OUT_IDX].td_data_phys);
- }
pci_pool_destroy(dev->stp_requests);
}
--
tg: (b36f4be..) upstream/usb/gadget/pch_udc/dma_pool (depends on: master)
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