提交 0a6ad06c 编写于 作者: T Tim Gardner 提交者: Dmitry Torokhov

Input: cm109 - convert high volume dev_err() to dev_err_ratelimited()

BugLink: http://bugs.launchpad.net/bugs/1222850

This input device can get into a state that produces a high
volume of device status errors. Attempt to throttle these
error messages such that the kernel log is not flooded.
Signed-off-by: NTim Gardner <tim.gardner@canonical.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
上级 a60a71b0
......@@ -351,7 +351,9 @@ static void cm109_urb_irq_callback(struct urb *urb)
if (status) {
if (status == -ESHUTDOWN)
return;
dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status);
dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n",
__func__, status);
goto out;
}
/* Special keys */
......@@ -418,8 +420,12 @@ static void cm109_urb_ctl_callback(struct urb *urb)
dev->ctl_data->byte[2],
dev->ctl_data->byte[3]);
if (status)
dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status);
if (status) {
if (status == -ESHUTDOWN)
return;
dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n",
__func__, status);
}
spin_lock(&dev->ctl_submit_lock);
......@@ -427,7 +433,7 @@ static void cm109_urb_ctl_callback(struct urb *urb)
if (likely(!dev->shutdown)) {
if (dev->buzzer_pending) {
if (dev->buzzer_pending || status) {
dev->buzzer_pending = 0;
dev->ctl_urb_pending = 1;
cm109_submit_buzz_toggle(dev);
......
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