Re: [PATCH 02/10] staging: comedi: acl7225b: remove board attach kernel noise

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On 09/04/2013 20:33, Greg Kroah-Hartman wrote:
On Tue, Apr 09, 2013 at 10:24:30AM +0100, Ian Abbott wrote:
On 2013-04-08 22:29, H Hartley Sweeten wrote:
The printk's during the board attach are just added noise. Remove
them.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
  drivers/staging/comedi/drivers/acl7225b.c | 7 +------
  1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/acl7225b.c b/drivers/staging/comedi/drivers/acl7225b.c
index eb8e906..284232f 100644
--- a/drivers/staging/comedi/drivers/acl7225b.c
+++ b/drivers/staging/comedi/drivers/acl7225b.c
@@ -74,13 +74,8 @@ static int acl7225b_attach(struct comedi_device *dev,

  	iobase = it->options[0];
  	iorange = board->io_range;
-	printk(KERN_INFO "comedi%d: acl7225b: board=%s 0x%04x\n", dev->minor,
-	       board->name, iobase);
-	if (!request_region(iobase, iorange, "acl7225b")) {
-		printk(KERN_ERR "comedi%d: request_region failed - I/O port conflict\n",
-			dev->minor);
+	if (!request_region(iobase, iorange, "acl7225b"))
  		return -EIO;
-	}

Those errors messages are useful.  Usually the first thing you do
when you run the "comedi_config" program to attach some legacy
device and it doesn't work is to run "dmesg" to find out what went
wrong.  At least that's what we tell people to do on the comedi
list!

The error message is good to keep, but the KERN_INFO line is not needed,
right?

Correct, and as Hartley mentioned, it should be a dev_err() (or dev_warn()?).


--
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti@xxxxxxxxx>        )=-
-=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
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