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[PATCH] USB usblp: rate-limit printer status error messages

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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 <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Randy Dunlap 2005-07-31 20:41:19 -07:00 committed by Greg Kroah-Hartman
parent a1cf96efba
commit 0bc8e009a2
1 changed files with 6 additions and 3 deletions
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9
drivers/usb/class/usblp.c
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@ -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;
}