mmc: core: Prevent bus reference leak in mmc_blk_init()

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Upon module load, mmc_block allocates a bus with bus_registeri() in
mmc_blk_init(). This reference never gets freed during module unload, which
leads to subsequent re-insertions of the module fails and a WARN() splat is
triggered.

Fix the bug by dropping the reference for the bus in mmc_blk_exit().

Signed-off-by: Alexander Kappner <agk@godking.net>
Fixes: 97548575be ("mmc: block: Convert RPMB to a character device")
Cc: <stable@vger.kernel.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Alexander Kappner 2018-03-28 15:18:31 -07:00 • committed by Ulf Hansson

parent a04f0017c2

commit d0a0852b9f

1 changed files with 1 additions and 0 deletions

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drivers/mmc/core/block.c

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