[PATCH] NULL arg for get_device() / put_device()

[Hannes Reinecke <hare@suse.de>]

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Greg KH wrote:
> On Mon, Sep 27, 2004 at 02:21:49PM +0200, Hannes Reinecke wrote:
> 
>>Hi all,
>>
>>is there a specific reason that get_device accepts NULL as argument,
>>whereas put_device() does not?
> 
> 
> Um, I guess I never thought about it :)
> 
> I don't see why it wouldn't take it, feel free to send a patch.
> 
Here it is. Please apply.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke			hare@suse.de
SuSE Linux AG				S390 & zSeries
Maxfeldstraße 5				+49 911 74053 688
90409 Nürnberg				http://www.suse.de

[-- Attachment #2: null-argument-for-put_device.patch --]
[-- Type: text/x-patch, Size: 694 bytes --]

# This is a BitKeeper generated diff -Nru style patch.
#
# ChangeSet
#   2004/09/28 08:59:54+02:00 hare@lammermuir.suse.de 
#   Since get_device() accepts a NULL argument, put_device() should do so, too.
#   
#   Signed-off-by: Hannes Reinecke <hare@suse.de>
# 
# drivers/base/core.c
#   2004/09/28 08:59:49+02:00 hare@lammermuir.suse.de +2 -1
#   put_device() should accept a NULL argument.
# 
diff -Nru a/drivers/base/core.c b/drivers/base/core.c
--- a/drivers/base/core.c	2004-09-28 09:01:20 +02:00
+++ b/drivers/base/core.c	2004-09-28 09:01:20 +02:00
@@ -293,7 +293,8 @@
  */
 void put_device(struct device * dev)
 {
-	kobject_put(&dev->kobj);
+	if (dev)
+		kobject_put(&dev->kobj);
 }