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UBI: Fastmap: Fix memory leaks while closing the WL sub-system 

Add a ubi_fastmap_close() to free all resources used by fastmap
at WL shutdown.

Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Guido Martínez <guido@vanguardiasur.com.ar>
Reviewed-by: Guido Martínez <guido@vanguardiasur.com.ar>
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Richard Weinberger 2016-05-27 09:44:16 +02:00 committed by Sascha Hauer
parent 0e0ab6669a
commit bb1a98cc18
1 changed files with 17 additions and 0 deletions
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17
drivers/mtd/ubi/wl.c
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@ -1857,6 +1857,22 @@ static void protection_queue_destroy(struct ubi_device *ubi)
}
}
static void ubi_fastmap_close(struct ubi_device *ubi)
{
#ifdef CONFIG_MTD_UBI_FASTMAP
int i;
return_unused_pool_pebs(ubi, &ubi->fm_pool);
return_unused_pool_pebs(ubi, &ubi->fm_wl_pool);
if (ubi->fm) {
for (i = 0; i < ubi->fm->used_blocks; i++)
kfree(ubi->fm->e[i]);
}
kfree(ubi->fm);
#endif
}
/**
* ubi_wl_close - close the wear-leveling sub-system.
* @ubi: UBI device description object
@ -1864,6 +1880,7 @@ static void protection_queue_destroy(struct ubi_device *ubi)
void ubi_wl_close(struct ubi_device *ubi)
{
dbg_wl("close the WL sub-system");
ubi_fastmap_close(ubi);
shutdown_work(ubi);
protection_queue_destroy(ubi);
tree_destroy(&ubi->used);