From: Randy Dunlap <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
---
drivers/usb/class/usblp.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff -Naurp linux-2613-rc4/drivers/usb/class/usblp.c~usblp_ratelimit
linux-2613-rc4/drivers/usb/class/usblp.c
--- linux-2613-rc4/drivers/usb/class/usblp.c~usblp_ratelimit 2005-07-29
22:26:09.000000000 -0700
+++ linux-2613-rc4/drivers/usb/class/usblp.c 2005-07-31 20:14:15.000000000
-0700
@@ -310,8 +310,9 @@ static int usblp_check_status(struct usb
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 *ino
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;
}
---
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