patch "USB: whci-hcd: add check for dma mapping error" added to usb-linus

This is a note to let you know that I've just added the patch titled

USB: whci-hcd: add check for dma mapping error

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From: Alexey Khoroshilov <[email protected]>
Date: Sat, 21 Nov 2015 00:36:44 +0300
Subject: USB: whci-hcd: add check for dma mapping error

qset_fill_page_list() do not check for dma mapping errors.

Found by Linux Driver Verification project (linuxtesting.org).

---
 drivers/usb/host/whci/qset.c | 4 ++++
 1 file changed, 4 insertions(+)

index dc31c425ce01..9f1c0538b211 100644
@@ -377,6 +377,10 @@ static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_f
 	if (std->pl_virt == NULL)
 		return -ENOMEM;
 	std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE);
+	if (dma_mapping_error(whc->wusbhc.dev, std->dma_addr)) {
+		kfree(std->pl_virt);
+		return -EFAULT;
+	}
 
 	for (p = 0; p < std->num_pointers; p++) {
 		std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr);

2.6.2