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

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
...@@ -188,10 +188,16 @@ static int rmi_set_page(struct hid_device *hdev, u8 page) ...@@ -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) static int rmi_set_mode(struct hid_device *hdev, u8 mode)
{ {
int ret; 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); sizeof(txbuf), HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(buf);
if (ret < 0) { if (ret < 0) {
dev_err(&hdev->dev, "unable to set rmi mode to %d (%d)\n", mode, dev_err(&hdev->dev, "unable to set rmi mode to %d (%d)\n", mode,
ret); ret);
......
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