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Date:	Sun, 10 Feb 2008 10:52:01 +0100
From:	Richard Knutsson <ricknu-0@...dent.ltu.se>
To:	caglar@...dus.org.tr
CC:	linux-kernel@...r.kernel.org, davem@...emloft.net,
	torvalds@...ux-foundation.org, hidave.darkstar@...il.com,
	marcel@...tmann.org
Subject: Re: [PATCH] Silent compiler warning introduced by acea6852f32b8805e166d885ed7e9f0c7cd10d41
 ([BLUETOOTH]: Move children of connection device to NULL before connection
 down.)

S.Çağlar Onur wrote:
> Hi;
>
> Following patch silents
>
> net/bluetooth/hci_sysfs.c: In function `del_conn':
> net/bluetooth/hci_sysfs.c:339: warning: suggest parentheses around assignment used as truth value
>
> compiler warning introduced by commit acea6852f32b8805e166d885ed7e9f0c7cd10d41 ([BLUETOOTH]: Move children of connection device to NULL before connection down.)
>
> Signed-off-by: S.Çağlar Onur <caglar@...dus.org.tr>
>
>  net/bluetooth/hci_sysfs.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
> index e13cf5e..d2d1e4f 100644
> --- a/net/bluetooth/hci_sysfs.c
> +++ b/net/bluetooth/hci_sysfs.c
> @@ -336,7 +336,7 @@ static void del_conn(struct work_struct *work)
>  	struct device *dev;
>  	struct hci_conn *conn = container_of(work, struct hci_conn, work);
>  
> -	while (dev = device_find_child(&conn->dev, NULL, __match_tty)) {
> +	while ((dev = device_find_child(&conn->dev, NULL, __match_tty)) != NULL) {
>   
Why do you need '!= NULL'?

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