[PATCH] HID: alps: pass correct sizes to hid_hw_raw_request()
From: Jiri Kosina <jikos@kernel.org>
Date: 2016-06-20 09:24:28
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
From: Jiri Kosina <redacted> Calculating size of the report as sizeof(pointer) always passess the length corresponding to the pointer type, not the underlying data report. Reported-by: kbuild test robot <redacted> Signed-off-by: Jiri Kosina <redacted> --- drivers/hid/hid-alps.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index 098bce6..ff64c929 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c@@ -136,7 +136,8 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address, input[7] = check_sum; ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, input, - sizeof(input), HID_FEATURE_REPORT, HID_REQ_SET_REPORT); + sizeof(u8)*U1_FEATURE_REPORT_LEN, HID_FEATURE_REPORT, + HID_REQ_SET_REPORT); if (ret < 0) { dev_err(&hdev->dev, "failed to read command (%d)\n", ret);
@@ -145,8 +146,8 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address, if (read_flag) { ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf, - sizeof(readbuf), HID_FEATURE_REPORT, - HID_REQ_GET_REPORT); + sizeof(u8)*U1_FEATURE_REPORT_LEN, + HID_FEATURE_REPORT, HID_REQ_GET_REPORT); if (ret < 0) { dev_err(&hdev->dev, "failed read register (%d)\n", ret);
--
Jiri Kosina
SUSE Labs