linux-kernel - [PATCH] Remove __must_check for device_for_each

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Message-ID: <20061022145718.GA2156@flint.arm.linux.org.uk>
Date:	Sun, 22 Oct 2006 15:57:18 +0100
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Linux Kernel List <linux-kernel@...r.kernel.org>
Cc:	Linus Torvalds <torvalds@...l.org>, Andrew Morton <akpm@...l.org>,
	Greg KH <greg@...ah.com>
Subject: [PATCH] Remove __must_check for device_for_each_child()

Eliminate more __must_check madness.

The return code from device_for_each_child() depends on the values
which the helper function returns.  If the helper function always
returns zero, it's utterly pointless to check the return code from
device_for_each_child().

The only code which knows if the return value should be checked is
the caller itself, so forcing the return code to always be checked
is silly.  Hence, remove the __must_check annotation.

Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>

diff --git a/include/linux/device.h b/include/linux/device.h
index 662e6a1..9d4f6a9 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -393,7 +393,7 @@ extern void device_unregister(struct dev
 extern void device_initialize(struct device * dev);
 extern int __must_check device_add(struct device * dev);
 extern void device_del(struct device * dev);
-extern int __must_check device_for_each_child(struct device *, void *,
+extern int device_for_each_child(struct device *, void *,
 		     int (*fn)(struct device *, void *));
 extern int device_rename(struct device *dev, char *new_name);
 

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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