From: Jiri Kosina <jkosina@xxxxxxx>
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 <fengguang.wu@xxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
---
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
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