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authorRandy Dunlap <rdunlap@xenotime.net>2005-08-01 05:41:19 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2005-09-09 01:22:40 +0200
commit0bc8e009a2d5106183ea31a2b83035e790778cab (patch)
tree88bba601400a656f63274b77246befceba0d704b /drivers
parent[PATCH] USB: ub 4: Zaitcev's quasi-S/G (diff)
downloadlinux-0bc8e009a2d5106183ea31a2b83035e790778cab.tar.xz
linux-0bc8e009a2d5106183ea31a2b83035e790778cab.zip
[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 <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/class/usblp.c9
1 files 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;
}