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Message-ID: <6334E09627481B4AA5C8DE1E69E19D3B09D1F13A@SSLEXCHANGE.solomonsystech.com>
Date: Thu, 4 Sep 2008 17:17:15 +0800
From: <sasin@...omon-systech.com>
To: <linux-kernel@...r.kernel.org>
Subject: mmc/card/block.c : mmc_blk_open readonly mount bug?
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.
"return -EROFS;"
should be replaced by
"
{
ret = -EROFS;
mmc_blk_put(md);
}
"
Best regards,
Sasi
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