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usblp: Cosmetics
This is a small bunch of cosmetic fixes: - Timeout is not a write timeout anymore, rename - Condition in poll was confusingly backwards, invert and simplify - The comment log gave a wrong impression of version 0.13, terminate it. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1 changed files with 5 additions and 4 deletions
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@ -28,6 +28,7 @@
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* v0.12 - add hpoj.sourceforge.net ioctls (David Paschal)
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* v0.13 - alloc space for statusbuf (<status> not on stack);
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* use usb_buffer_alloc() for read buf & write buf;
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* none - Maintained in Linux kernel after v0.13
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*/
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/*
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@ -114,7 +115,7 @@ MFG:HEWLETT-PACKARD;MDL:DESKJET 970C;CMD:MLC,PCL,PML;CLASS:PRINTER;DESCRIPTION:H
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#define USBLP_MINORS 16
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#define USBLP_MINOR_BASE 0
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#define USBLP_WRITE_TIMEOUT (5000) /* 5 seconds */
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#define USBLP_CTL_TIMEOUT 5000 /* 5 seconds */
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#define USBLP_FIRST_PROTOCOL 1
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#define USBLP_LAST_PROTOCOL 3
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@ -260,7 +261,7 @@ static int usblp_ctrl_msg(struct usblp *usblp, int request, int type, int dir, i
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retval = usb_control_msg(usblp->dev,
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dir ? usb_rcvctrlpipe(usblp->dev, 0) : usb_sndctrlpipe(usblp->dev, 0),
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request, type | dir | recip, value, index, buf, len, USBLP_WRITE_TIMEOUT);
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request, type | dir | recip, value, index, buf, len, USBLP_CTL_TIMEOUT);
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dbg("usblp_control_msg: rq: 0x%02x dir: %d recip: %d value: %d idx: %d len: %#x result: %d",
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request, !!dir, recip, value, index, len, retval);
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return retval < 0 ? retval : 0;
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@ -479,8 +480,8 @@ static unsigned int usblp_poll(struct file *file, struct poll_table_struct *wait
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poll_wait(file, &usblp->rwait, wait);
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poll_wait(file, &usblp->wwait, wait);
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spin_lock_irqsave(&usblp->lock, flags);
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ret = ((!usblp->bidir || !usblp->rcomplete) ? 0 : POLLIN | POLLRDNORM)
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| ((usblp->no_paper || usblp->wcomplete) ? POLLOUT | POLLWRNORM : 0);
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ret = ((usblp->bidir && usblp->rcomplete) ? POLLIN | POLLRDNORM : 0) |
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((usblp->no_paper || usblp->wcomplete) ? POLLOUT | POLLWRNORM : 0);
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spin_unlock_irqrestore(&usblp->lock, flags);
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return ret;
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}
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