70bb08962e
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> Acked-by: 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> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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