linux-kernel - [PATCH 12/35] UBI: Fastmap: Notify user in case of an ubi_update

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Date:	Wed, 29 Oct 2014 13:45:35 +0100
From:	Richard Weinberger <richard@....at>
To:	dedekind1@...il.com
Cc:	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	tlinder@...eaurora.org, Richard Weinberger <richard@....at>
Subject: [PATCH 12/35] UBI: Fastmap: Notify user in case of an ubi_update_fastmap() failure

If ubi_update_fastmap() fails notify the user.
This is not a hard error as ubi_update_fastmap() makes sure upon failure that
the current on-flash fastmap will no be used upon next UBI attach.

Signed-off-by: Richard Weinberger <richard@....at>
---
 drivers/mtd/ubi/wl.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index ac19f75..44ebefd 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -640,7 +640,11 @@ again:
 	if (!pool->size || !wl_pool->size || pool->used >= pool->size ||
 	    wl_pool->used >= wl_pool->size) {
 		spin_unlock(&ubi->wl_lock);
-		ubi_update_fastmap(ubi);
+		ret = ubi_update_fastmap(ubi);
+		if (ret) {
+			ubi_msg("Unable to write a new fastmap: %i", ret);
+			return -ENOSPC;
+		}
 		spin_lock(&ubi->wl_lock);
 	}
 
-- 
1.8.4.5

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