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From: Richard Weinberger <richard@nod.at>
To: dedekind1@gmail.com
Cc: dwmw2@infradead.org, linux-mtd@lists.infradead.org,
	linux-kernel@vger.kernel.org, richard.genoud@gmail.com,
	Richard Weinberger <richard@nod.at>
Subject: [PATCH 2/2] UBI: Call scan_all() with correct offset in error case
Date: Wed, 25 Sep 2013 22:32:05 +0200	[thread overview]
Message-ID: <1380141125-11063-2-git-send-email-richard@nod.at> (raw)
In-Reply-To: <1380141125-11063-1-git-send-email-richard@nod.at>

If we find an invalid fastmap we have to scan from the very beginning.
Otherwise we leak the first 64 PEBs.

Reported-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 drivers/mtd/ubi/attach.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index c071d41..03b32b0 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -1417,9 +1417,11 @@ int ubi_attach(struct ubi_device *ubi, int force_scan)
 				ai = alloc_ai("ubi_aeb_slab_cache2");
 				if (!ai)
 					return -ENOMEM;
-			}
 
-			err = scan_all(ubi, ai, UBI_FM_MAX_START);
+				err = scan_all(ubi, ai, 0);
+			} else {
+				err = scan_all(ubi, ai, UBI_FM_MAX_START);
+			}
 		}
 	}
 #else
-- 
1.8.1.4


  reply	other threads:[~2013-09-25 20:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-25 20:32 [PATCH 1/2] UBI: Fix error path in scan_pool() Richard Weinberger
2013-09-25 20:32 ` Richard Weinberger [this message]
2013-09-26  7:22   ` [PATCH 2/2] UBI: Call scan_all() with correct offset in error case Richard Genoud
2013-09-26  7:20 ` [PATCH 1/2] UBI: Fix error path in scan_pool() Richard Genoud
2013-09-26  7:24   ` Richard Weinberger
2013-09-26  7:33     ` Richard Genoud
2013-09-26  9:25       ` Richard Genoud
2013-09-26  9:59         ` Richard Weinberger
2013-09-27 11:01         ` Richard Weinberger
2013-09-27 11:12           ` Richard Genoud

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