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mtd: core: don't remove debugfs directory if device is in use
[ Upstream commit c13de23 ] Previously, if del_mtd_device() failed with -EBUSY due to a non-zero usecount, a subsequent call to attempt the deletion again would try to remove a debugfs directory that had already been removed and panic. With this change the second call can instead proceed safely. Fixes: e8e3edb ("mtd: create per-device and module-scope debugfs entries") Signed-off-by: Zev Weiss <zev@bewilderbeest.net> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20211014203953.5424-1-zev@bewilderbeest.net Signed-off-by: Sasha Levin <sashal@kernel.org>
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