| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 029/125] ubi: Put MTD device after it is not used | Date | Wed, 4 Dec 2019 18:55:34 +0100 |
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From: Pan Bian <bianpan2016@163.com>
[ Upstream commit b95f83ab762dd6211351b9140f99f43644076ca8 ]
The MTD device reference is dropped via put_mtd_device, however its field ->index is read and passed to ubi_msg. To fix this, the patch moves the reference dropping after calling ubi_msg.
Signed-off-by: Pan Bian <bianpan2016@163.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/mtd/ubi/build.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index ad2b57c6b13fd..211ee13d36ed4 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -1146,10 +1146,10 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway) ubi_wl_close(ubi); ubi_free_internal_volumes(ubi); vfree(ubi->vtbl); - put_mtd_device(ubi->mtd); vfree(ubi->peb_buf); vfree(ubi->fm_buf); ubi_msg(ubi, "mtd%d is detached", ubi->mtd->index); + put_mtd_device(ubi->mtd); put_device(&ubi->dev); return 0; } -- 2.20.1
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