From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Hugo Villeneuve <hugo@hugovil.com>
Cc: gregkh@linuxfoundation.org, jirislaby@kernel.org,
jringle@gridpoint.com, kubakici@wp.pl, phil@raspberrypi.org,
bo.svangard@embeddedart.se, linux-kernel@vger.kernel.org,
linux-serial@vger.kernel.org,
Hugo Villeneuve <hvilleneuve@dimonoff.com>,
stable@vger.kernel.org
Subject: Re: [PATCH 01/18] serial: sc16is7xx: fix segfault when removing driver
Date: Wed, 20 Dec 2023 17:38:05 +0200 [thread overview]
Message-ID: <ZYMKXahWqvsGdy77@smile.fi.intel.com> (raw)
In-Reply-To: <ZYMJhKvGAFgj9phL@smile.fi.intel.com>
On Wed, Dec 20, 2023 at 05:34:29PM +0200, Andy Shevchenko wrote:
> On Tue, Dec 19, 2023 at 12:18:45PM -0500, Hugo Villeneuve wrote:
> > From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
...
> > + dev_set_drvdata(dev, NULL);
>
> I believe this is wrong approach to fix the issue as this one is prone
> to be cleaned up in the future as we don't do this call explicitly for
> the past ~15 years.
On top of that the ->remove() is not the only uart_remove_one_port() call.
It has a lot of other stuff to go with.
It seems that ->remove() doesn't check the bit in &sc16is7xx_lines, that
might be the proper fix for the issue you have.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2023-12-20 15:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20231219171903.3530985-1-hugo@hugovil.com>
2023-12-19 17:18 ` [PATCH 01/18] serial: sc16is7xx: fix segfault when removing driver Hugo Villeneuve
2023-12-20 15:34 ` Andy Shevchenko
2023-12-20 15:38 ` Andy Shevchenko [this message]
2023-12-19 17:18 ` [PATCH 02/18] serial: sc16is7xx: fix invalid sc16is7xx_lines bitfield in case of probe error Hugo Villeneuve
2023-12-20 15:40 ` Andy Shevchenko
2023-12-21 15:56 ` Hugo Villeneuve
2023-12-21 16:05 ` Andy Shevchenko
2023-12-21 16:13 ` Hugo Villeneuve
2023-12-21 16:16 ` Andy Shevchenko
2023-12-21 17:13 ` Hugo Villeneuve
2023-12-19 17:18 ` [PATCH 03/18] serial: sc16is7xx: remove obsolete loop in sc16is7xx_port_irq() Hugo Villeneuve
2023-12-20 15:41 ` Andy Shevchenko
2023-12-20 22:09 ` Hugo Villeneuve
2023-12-19 17:18 ` [PATCH 04/18] serial: sc16is7xx: improve do/while loop in sc16is7xx_irq() Hugo Villeneuve
2023-12-20 15:42 ` Andy Shevchenko
2023-12-20 16:00 ` Hugo Villeneuve
2023-12-19 17:18 ` [PATCH 15/18] serial: sc16is7xx: pass R/W buffer in FIFO functions Hugo Villeneuve
2023-12-20 15:57 ` Andy Shevchenko
2023-12-21 19:35 ` Hugo Villeneuve
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