Commit c3fc1a39 authored Jul 07, 2020 by Zhihao Cheng Committed by Richard Weinberger Aug 02, 2020

ubi: fastmap: Free fastmap next anchor peb during detach



ubi_wl_entry related with the fm_next_anchor PEB is not freed during
detach, which causes a memory leak.
Don't forget to release fm_next_anchor PEB while detaching ubi from
mtd when CONFIG_MTD_UBI_FASTMAP is enabled.

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Fixes: 4b68bf9a ("ubi: Select fastmap anchor PEBs considering...")
Signed-off-by: Richard Weinberger <richard@nod.at>

parent 3b185255

drivers/mtd/ubi/fastmap-wl.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -381,6 +381,11 @@ static void ubi_fastmap_close(struct ubi_device *ubi)
		ubi->fm_anchor = NULL;
		}

		if (ubi->fm_next_anchor) {
		return_unused_peb(ubi, ubi->fm_next_anchor);
		ubi->fm_next_anchor = NULL;
		}

		if (ubi->fm) {
		for (i = 0; i < ubi->fm->used_blocks; i++)
		kfree(ubi->fm->e[i]);

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