diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-02 20:09:08 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-02 20:09:08 -0800 |
commit | 13df7977431e3b906a23bb75f29e0f40a8d73f87 (patch) | |
tree | bc2c78c3b816a65f90c31cccebdc15b38352c045 /drivers/hid/hid-hyperv.c | |
parent | 6d8b3e1ad3d3815d9c87b8553493301e243af76a (diff) | |
parent | 0414855fdc4a40da05221fc6062cccbc0c30f169 (diff) |
Merge 3.14-rc5 into driver-core-next
We want the fixes in here.
Diffstat (limited to 'drivers/hid/hid-hyperv.c')
-rw-r--r-- | drivers/hid/hid-hyperv.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c index 8fae6d1414cc..c24908f14934 100644 --- a/drivers/hid/hid-hyperv.c +++ b/drivers/hid/hid-hyperv.c @@ -157,6 +157,7 @@ struct mousevsc_dev { u32 report_desc_size; struct hv_input_dev_info hid_dev_info; struct hid_device *hid_device; + u8 input_buf[HID_MAX_BUFFER_SIZE]; }; @@ -256,6 +257,7 @@ static void mousevsc_on_receive(struct hv_device *device, struct synthhid_msg *hid_msg; struct mousevsc_dev *input_dev = hv_get_drvdata(device); struct synthhid_input_report *input_report; + size_t len; pipe_msg = (struct pipe_prt_msg *)((unsigned long)packet + (packet->offset8 << 3)); @@ -300,9 +302,12 @@ static void mousevsc_on_receive(struct hv_device *device, (struct synthhid_input_report *)pipe_msg->data; if (!input_dev->init_complete) break; - hid_input_report(input_dev->hid_device, - HID_INPUT_REPORT, input_report->buffer, - input_report->header.size, 1); + + len = min(input_report->header.size, + (u32)sizeof(input_dev->input_buf)); + memcpy(input_dev->input_buf, input_report->buffer, len); + hid_input_report(input_dev->hid_device, HID_INPUT_REPORT, + input_dev->input_buf, len, 1); break; default: pr_err("unsupported hid msg type - type %d len %d", |