From 0bc8e009a2d5106183ea31a2b83035e790778cab Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 31 Jul 2005 20:41:19 -0700 Subject: [PATCH] [PATCH] USB usblp: rate-limit printer status error messages Rate-limit usblp printer error status messages. I unplugged my USB printer and almost instantly got several hundred of these in my kernel message log: drivers/usb/class/usblp.c: usblp0: error -19 reading printer status Signed-off-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/usblp.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 7ce43fb8118a..e195709c9c7f 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -310,8 +310,9 @@ static int usblp_check_status(struct usblp *usblp, int err) error = usblp_read_status (usblp, usblp->statusbuf); if (error < 0) { - err("usblp%d: error %d reading printer status", - usblp->minor, error); + if (printk_ratelimit()) + err("usblp%d: error %d reading printer status", + usblp->minor, error); return 0; } @@ -604,7 +605,9 @@ static int usblp_ioctl(struct inode *inode, struct file *file, unsigned int cmd, case LPGETSTATUS: if (usblp_read_status(usblp, usblp->statusbuf)) { - err("usblp%d: failed reading printer status", usblp->minor); + if (printk_ratelimit()) + err("usblp%d: failed reading printer status", + usblp->minor); retval = -EIO; goto done; } -- 2.20.1