mtd: ubi: Release device reference on busy detach

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ubi_detach_mtd_dev() obtains a device reference through ubi_get_device()
before checking whether the UBI device is busy. The busy return path drops
ubi->ref_count but leaves the device reference held, so the device object
cannot be released after a later detach.

Drop the device reference before returning -EBUSY.

Fixes: 7e84c961b2 ("mtd: ubi: introduce pre-removal notification for UBI volumes")
Signed-off-by: Yuho Choi <dbgh9129@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

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Yuho Choi 2026-08-07 16:45:50 -04:00 • committed by Richard Weinberger

parent 5b0a6b554e

commit 31dd710cd8

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drivers/mtd/ubi/build.c

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