From: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
To: Dan Carpenter <error27@gmail.com>,
netdev@vger.kernel.org, Joe Perches <joe@perches.com>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [patch] stmmac: use resource_size()
Date: Mon, 22 Mar 2010 16:15:03 +0100 [thread overview]
Message-ID: <4BA78977.6020801@st.com> (raw)
In-Reply-To: <20100322121111.GJ21571@bicker>
Hi Dan
Thanks, the patch can also applied against the net-next driver and it's ok.
Regards,
Giuseppe
Dan Carpenter wrote:
> The size calculation is not correct. It should be end - start + 1.
> Use resource_size() to calculate it instead.
>
> Signed-off-by: Dan Carpenter <error27@gmail.com>
>
> diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
> index a673361..92bef30 100644
> --- a/drivers/net/stmmac/stmmac_main.c
> +++ b/drivers/net/stmmac/stmmac_main.c
> @@ -1685,8 +1685,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
> }
> pr_info("done!\n");
>
> - if (!request_mem_region(res->start, (res->end - res->start),
> - pdev->name)) {
> + if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
> pr_err("%s: ERROR: memory allocation failed"
> "cannot get the I/O addr 0x%x\n",
> __func__, (unsigned int)res->start);
> @@ -1694,9 +1693,9 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
> goto out;
> }
>
> - addr = ioremap(res->start, (res->end - res->start));
> + addr = ioremap(res->start, resource_size(res));
> if (!addr) {
> - pr_err("%s: ERROR: memory mapping failed \n", __func__);
> + pr_err("%s: ERROR: memory mapping failed\n", __func__);
> ret = -ENOMEM;
> goto out;
> }
> @@ -1774,7 +1773,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
> out:
> if (ret < 0) {
> platform_set_drvdata(pdev, NULL);
> - release_mem_region(res->start, (res->end - res->start));
> + release_mem_region(res->start, resource_size(res));
> if (addr != NULL)
> iounmap(addr);
> }
> @@ -1812,7 +1811,7 @@ static int stmmac_dvr_remove(struct platform_device *pdev)
>
> iounmap((void *)ndev->base_addr);
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - release_mem_region(res->start, (res->end - res->start));
> + release_mem_region(res->start, resource_size(res));
>
> free_netdev(ndev);
>
>
next prev parent reply other threads:[~2010-03-22 15:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-22 12:11 [patch] stmmac: use resource_size() Dan Carpenter
2010-03-22 15:15 ` Giuseppe CAVALLARO [this message]
2010-03-23 1:33 ` David Miller
-- strict thread matches above, loose matches on Subject: below --
2010-04-07 9:35 Dan Carpenter
2010-04-08 4:50 ` David Miller
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