Commit 6dab07df authored by Benjamin Tissoires's avatar Benjamin Tissoires Committed by Jiri Kosina
Browse files

HID: rmi: make transfer buffers DMA capable 



Kernel v4.9 strictly enforces DMA capable buffers, so we need to remove
buffers allocated on the stack.

Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent b7a87ad6

drivers/hid/hid-rmi.c

+8 −2
Original line number Diff line number Diff line
@@ -188,10 +188,16 @@ static int rmi_set_page(struct hid_device *hdev, u8 page) 
static int rmi_set_mode(struct hid_device *hdev, u8 mode)

{

	int ret;

	u8 txbuf[2] = {RMI_SET_RMI_MODE_REPORT_ID, mode};

	const u8 txbuf[2] = {RMI_SET_RMI_MODE_REPORT_ID, mode};

	u8 *buf;



	ret = hid_hw_raw_request(hdev, RMI_SET_RMI_MODE_REPORT_ID, txbuf,

	buf = kmemdup(txbuf, sizeof(txbuf), GFP_KERNEL);

	if (!buf)

		return -ENOMEM;



	ret = hid_hw_raw_request(hdev, RMI_SET_RMI_MODE_REPORT_ID, buf,

			sizeof(txbuf), HID_FEATURE_REPORT, HID_REQ_SET_REPORT);

	kfree(buf);

	if (ret < 0) {

		dev_err(&hdev->dev, "unable to set rmi mode to %d (%d)\n", mode,

			ret);