From: Alexey Khoroshilov <khoroshilov@ispras.ru>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jiri Slaby <jirislaby@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [patch] tty: mxser: forever loops on error
Date: Tue, 09 Apr 2013 05:50:35 +0000 [thread overview]
Message-ID: <5163AC2B.7060804@ispras.ru> (raw)
In-Reply-To: <20130409051838.GB1516@longonot.mountain>
Hi Dan,
Thank you for the patch.
We are also trying to fix the issue:
https://lkml.org/lkml/2013/2/19/29
https://lkml.org/lkml/2013/4/8/55
and the fix is finally in Greg's tty git tree since yesterday:
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
(tty-linus branch).
Best regards,
Alexey
On 04/09/2013 09:18 AM, Dan Carpenter wrote:
> There were a couple signedness bugs decrementing "i" which would lead to
> a forever loops.
>
> I've made a couple other variables signed as well because they are all
> related array offsets and it would be weird if they weren't the same
> type.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
> index d996038..a095859 100644
> --- a/drivers/tty/mxser.c
> +++ b/drivers/tty/mxser.c
> @@ -2556,9 +2556,9 @@ static int mxser_probe(struct pci_dev *pdev,
> {
> #ifdef CONFIG_PCI
> struct mxser_board *brd;
> - unsigned int i, j;
> unsigned long ioaddress;
> struct device *tty_dev;
> + int i, j;
> int retval = -EINVAL;
>
> for (i = 0; i < MXSER_BOARDS; i++)
> @@ -2700,7 +2700,7 @@ static int __init mxser_module_init(void)
> {
> struct mxser_board *brd;
> struct device *tty_dev;
> - unsigned int b, i, m;
> + int b, i, m;
> int retval;
>
> mxvar_sdriver = alloc_tty_driver(MXSER_PORTS + 1);
>
WARNING: multiple messages have this Message-ID (diff)
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jiri Slaby <jirislaby@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [patch] tty: mxser: forever loops on error
Date: Tue, 09 Apr 2013 09:50:35 +0400 [thread overview]
Message-ID: <5163AC2B.7060804@ispras.ru> (raw)
In-Reply-To: <20130409051838.GB1516@longonot.mountain>
Hi Dan,
Thank you for the patch.
We are also trying to fix the issue:
https://lkml.org/lkml/2013/2/19/29
https://lkml.org/lkml/2013/4/8/55
and the fix is finally in Greg's tty git tree since yesterday:
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
(tty-linus branch).
Best regards,
Alexey
On 04/09/2013 09:18 AM, Dan Carpenter wrote:
> There were a couple signedness bugs decrementing "i" which would lead to
> a forever loops.
>
> I've made a couple other variables signed as well because they are all
> related array offsets and it would be weird if they weren't the same
> type.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
> index d996038..a095859 100644
> --- a/drivers/tty/mxser.c
> +++ b/drivers/tty/mxser.c
> @@ -2556,9 +2556,9 @@ static int mxser_probe(struct pci_dev *pdev,
> {
> #ifdef CONFIG_PCI
> struct mxser_board *brd;
> - unsigned int i, j;
> unsigned long ioaddress;
> struct device *tty_dev;
> + int i, j;
> int retval = -EINVAL;
>
> for (i = 0; i < MXSER_BOARDS; i++)
> @@ -2700,7 +2700,7 @@ static int __init mxser_module_init(void)
> {
> struct mxser_board *brd;
> struct device *tty_dev;
> - unsigned int b, i, m;
> + int b, i, m;
> int retval;
>
> mxvar_sdriver = alloc_tty_driver(MXSER_PORTS + 1);
>
next prev parent reply other threads:[~2013-04-09 5:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-09 5:18 [patch] tty: mxser: forever loops on error Dan Carpenter
2013-04-09 5:18 ` Dan Carpenter
2013-04-09 5:50 ` Alexey Khoroshilov [this message]
2013-04-09 5:50 ` Alexey Khoroshilov
2013-04-09 6:22 ` Dan Carpenter
2013-04-09 6:22 ` Dan Carpenter
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