* [PATCH] MTD: Prevent a read from regions[-1]
@ 2009-08-09 9:38 Roel Kluin
0 siblings, 0 replies; only message in thread
From: Roel Kluin @ 2009-08-09 9:38 UTC (permalink / raw)
To: David Woodhouse, linux-mtd, Andrew Morton
If the erase region was found in the first iteration we read from
regions[-1]
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 349fcbe..a83cfa1 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -453,7 +453,8 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
for (i = 0; i < max && regions[i].offset <= slave->offset; i++)
;
/* The loop searched for the region _behind_ the first one */
- i--;
+ if (i > 0)
+ i--;
/* Pick biggest erasesize */
for (; i < max && regions[i].offset < end; i++) {
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2009-08-09 9:38 [PATCH] MTD: Prevent a read from regions[-1] Roel Kluin
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