Messages in this thread | | | Subject | RE: mmc/card/block.c : mmc_blk_open readonly mount bug? | Date | Fri, 5 Sep 2008 13:36:06 +0800 | From | <> |
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Guess nobody tests with readonly? We had a socket on our board that flipped the write protect signal, and the rest you know :-)
-----Original Message----- From: Pierre Ossman [mailto:drzeus-list@drzeus.cx] Sent: Friday, September 05, 2008 1:07 PM To: Andrew Morton Cc: Sasi Nair; linux-kernel@vger.kernel.org Subject: Re: mmc/card/block.c : mmc_blk_open readonly mount bug?
On Thu, 4 Sep 2008 16:08:08 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:
> From: Andrew Morton <akpm@linux-foundation.org> > > mmc_block_open() increments md->usage although it returns with -EROFS when > default mounting a MMC/SD card with write protect switch on. This > reference counting bug prevents /dev/mmcblkX from being released on card > removal, and situation worsen with reinsertion until the minor number > range runs out. > > Reported-by: <sasin@solomon-systech.com> > Cc: Pierre Ossman <drzeus-list@drzeus.cx> > Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x] > Signed-off-by: Andrew Morton <akpm@linux-foundation.org> > ---
I wonder how that bug has been able to go unnoticed for so long...
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
-- -- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org rdesktop, core developer http://www.rdesktop.org
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