[Devel] Re: [PATCH] Fixes for the deferqueue_add() function (v2)

Amerigo Wang xiyou.wangcong at gmail.com
Sun Jun 21 20:20:39 PDT 2009


On Fri, Jun 19, 2009 at 11:18:25AM -0700, Dan Smith wrote:
>I'm not sure how the deferqueue would (or has ever) worked without these
>modifications, but I had to make them in order to use it :)
>
>Changes (v2):
>  - Remove unnecessary initialization of the new list item
>
>Cc: orenl at cs.columbia.edu
>Signed-off-by: Dan Smith <danms at us.ibm.com>

Good catch!!

Reviewed-by: WANG Cong <xiyou.wangcong at gmail.com>

>---
> kernel/deferqueue.c |    4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
>diff --git a/kernel/deferqueue.c b/kernel/deferqueue.c
>index efd99d5..3fb388b 100644
>--- a/kernel/deferqueue.c
>+++ b/kernel/deferqueue.c
>@@ -66,7 +66,7 @@ int deferqueue_add(struct deferqueue_head *head, void *data, int size,
> {
> 	struct deferqueue_entry *dq;
> 
>-	dq = kmalloc(sizeof(dq) + size, GFP_KERNEL);
>+	dq = kmalloc(sizeof(*dq) + size, GFP_KERNEL);
> 	if (!dq)
> 		return -ENOMEM;
> 
>@@ -77,7 +77,7 @@ int deferqueue_add(struct deferqueue_head *head, void *data, int size,
> 	pr_debug("%s: adding work %p func %p dtor %p\n",
> 		 __func__, dq, func, dtor);
> 	spin_lock(&head->lock);
>-	list_add_tail(&head->list, &dq->list);
>+	list_add_tail(&dq->list, &head->list);
> 	spin_unlock(&head->lock);
> 	return 0;
> }
>-- 
>1.6.0.4
>
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