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HID: hyperv: Correctly access fields declared as __le16 

Add the use of le16_to_cpu() for fields declared as __le16. Because
Hyper-V only runs in Little Endian mode, there's no actual bug.
The change is made in the interest of general correctness in
addition to making sparse happy. No functional change.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1654660177-115463-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
This commit is contained in:
Michael Kelley 2022-06-07 20:49:37 -07:00 committed by Wei Liu
parent 245b993d8f
commit f5f93d7f5a
1 changed files with 3 additions and 2 deletions
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5
drivers/hid/hid-hyperv.c
View File

@ -199,7 +199,8 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
if (!input_device->hid_desc)
goto cleanup;
input_device->report_desc_size = desc->desc[0].wDescriptorLength;
input_device->report_desc_size = le16_to_cpu(
desc->desc[0].wDescriptorLength);
if (input_device->report_desc_size == 0) {
input_device->dev_info_status = -EINVAL;
goto cleanup;
@ -217,7 +218,7 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
memcpy(input_device->report_desc,
((unsigned char *)desc) + desc->bLength,
desc->desc[0].wDescriptorLength);
le16_to_cpu(desc->desc[0].wDescriptorLength));
/* Send the ack */
memset(&ack, 0, sizeof(struct mousevsc_prt_msg));