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| author | Tim Gardner <tim.gardner@canonical.com> | 2013-09-19 14:24:04 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-10-06 01:23:41 -0700 |
| commit | 0a6ad06c43315ce0e5115d5ce51b04464245dde8 (patch) | |
| tree | 53947b42185e89bd975e9d123ae53f4df688b064 /drivers | |
| parent | a60a71b035e4d2f4920ef091265b1474a14ab313 (diff) | |
| download | linux-0a6ad06c43315ce0e5115d5ce51b04464245dde8.tar.gz linux-0a6ad06c43315ce0e5115d5ce51b04464245dde8.tar.bz2 linux-0a6ad06c43315ce0e5115d5ce51b04464245dde8.zip | |
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: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/misc/cm109.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c index 082684e7f390..9365535ba7f1 100644 --- a/drivers/input/misc/cm109.c +++ b/drivers/input/misc/cm109.c @@ -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); |