diff options
Diffstat (limited to 'drivers/hid/hid-logitech-hidpp.c')
| -rw-r--r-- | drivers/hid/hid-logitech-hidpp.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 4337cc3f4283..ef90252cf1ae 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -338,8 +338,13 @@ static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp, struct hidpp_report *message; int ret; - if (param_count > sizeof(message->fap.params)) + if (param_count > sizeof(message->fap.params)) { + hid_dbg(hidpp->hid_dev, + "Invalid number of parameters passed to command (%d != %llu)\n", + param_count, + (unsigned long long) sizeof(message->fap.params)); return -EINVAL; + } message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL); if (!message) @@ -3440,11 +3445,17 @@ static int hi_res_scroll_enable(struct hidpp_device *hidpp) ret = hidpp10_enable_scrolling_acceleration(hidpp); multiplier = 8; } - if (ret) + if (ret) { + hid_dbg(hidpp->hid_dev, + "Could not enable hi-res scrolling: %d\n", ret); return ret; + } - if (multiplier == 0) + if (multiplier == 0) { + hid_dbg(hidpp->hid_dev, + "Invalid multiplier 0 from device, setting it to 1\n"); multiplier = 1; + } hidpp->vertical_wheel_counter.wheel_multiplier = multiplier; hid_dbg(hidpp->hid_dev, "wheel multiplier = %d\n", multiplier); |