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>
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@ -2064,6 +2064,23 @@ static void protection_queue_destroy(struct ubi_device *ubi)
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}
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}
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static void ubi_fastmap_close(struct ubi_device *ubi)
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{
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#ifdef CONFIG_MTD_UBI_FASTMAP
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int i;
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flush_work(&ubi->fm_work);
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return_unused_pool_pebs(ubi, &ubi->fm_pool);
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return_unused_pool_pebs(ubi, &ubi->fm_wl_pool);
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if (ubi->fm) {
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for (i = 0; i < ubi->fm->used_blocks; i++)
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kfree(ubi->fm->e[i]);
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}
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kfree(ubi->fm);
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#endif
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}
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/**
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* ubi_wl_close - close the wear-leveling sub-system.
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* @ubi: UBI device description object
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@ -2071,6 +2088,7 @@ static void protection_queue_destroy(struct ubi_device *ubi)
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void ubi_wl_close(struct ubi_device *ubi)
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{
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dbg_wl("close the WL sub-system");
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ubi_fastmap_close(ubi);
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shutdown_work(ubi);
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protection_queue_destroy(ubi);
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tree_destroy(&ubi->used);
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