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Subject[PATCH 3.2 09/60] UBI: return ENOSPC if no enough space available
3.2.73-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: shengyong <shengyong1@huawei.com>

commit 7c7feb2ebfc9c0552c51f0c050db1d1a004faac5 upstream.

UBI: attaching mtd1 to ubi0
UBI: scanning is finished
UBI error: init_volumes: not enough PEBs, required 706, available 686
UBI error: ubi_wl_init: no enough physical eraseblocks (-20, need 1)
UBI error: ubi_attach_mtd_dev: failed to attach mtd1, error -12 <= NOT ENOMEM
UBI error: ubi_init: cannot attach mtd1

If available PEBs are not enough when initializing volumes, return -ENOSPC
directly. If available PEBs are not enough when initializing WL, return
-ENOSPC instead of -ENOMEM.

Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: David Gstir <david@sigma-star.at>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/mtd/ubi/vtbl.c | 1 +
drivers/mtd/ubi/wl.c | 1 +
2 files changed, 2 insertions(+)

--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -656,6 +656,7 @@ static int init_volumes(struct ubi_devic
if (ubi->corr_peb_count)
ubi_err("%d PEBs are corrupted and not used",
ubi->corr_peb_count);
+ return -ENOSPC;
}
ubi->rsvd_pebs += reserved_pebs;
ubi->avail_pebs -= reserved_pebs;
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1512,6 +1512,7 @@ int ubi_wl_init_scan(struct ubi_device *
if (ubi->corr_peb_count)
ubi_err("%d PEBs are corrupted and not used",
ubi->corr_peb_count);
+ err = -ENOSPC;
goto out_free;
}
ubi->avail_pebs -= WL_RESERVED_PEBS;


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