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mtd, ubi: set free_count to zero before walking through erase list
Set free_count to zero before walking through ai->erase list in wl_init(). As U-Boot has no workqueue/threads, it immediately calls erase_worker(), which increase for each erased block free_count. Without this patch, free_count gets after this initialized to zero in wl_init(), so the free_count variable always has the maybe wrong value 0. Detected this behaviour on the dxr2 board, where the UBI fastmap gets not written when attaching/dettaching on an empty NAND. It drops instead the error message: could not find any anchor PEB With this patch, fastmap gets written on dettach. Signed-off-by: Heiko Schocher <hs@denx.de> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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1 changed files with 1 additions and 1 deletions
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@ -1528,6 +1528,7 @@ int ubi_wl_init(struct ubi_device *ubi, struct ubi_attach_info *ai)
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INIT_LIST_HEAD(&ubi->pq[i]);
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ubi->pq_head = 0;
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ubi->free_count = 0;
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list_for_each_entry_safe(aeb, tmp, &ai->erase, u.list) {
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cond_resched();
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@ -1546,7 +1547,6 @@ int ubi_wl_init(struct ubi_device *ubi, struct ubi_attach_info *ai)
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found_pebs++;
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}
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ubi->free_count = 0;
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list_for_each_entry(aeb, &ai->free, u.list) {
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cond_resched();
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