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authorNicolas Pitre <nico@cam.org>2005-10-25 21:28:43 +0100
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-11-06 23:19:17 +0100
commit6f6ed056d2d5de7af9f0c14cf5bc73707eeb0a88 (patch)
treee6063cb490c6b80226a040bf12da573ea72c87d8 /drivers/mtd/chips/cfi_cmdset_0001.c
parent008531f4c30dce606094be8f78c766218edd6754 (diff)
[MTD] chips/cfi_cmdset_0001: fix for P30 cfi parsing
Change to the extended cfi table parsing for Intel NOR flash that uses the info in the extended table to 'walk' the table rather than using hard coding for various primary extended query table version numbers. From: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/mtd/chips/cfi_cmdset_0001.c')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index adaad7c8fd4..61a2ec9901e 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -4,7 +4,7 @@
*
* (C) 2000 Red Hat. GPL'd
*
- * $Id: cfi_cmdset_0001.c,v 1.183 2005/08/06 04:46:56 nico Exp $
+ * $Id: cfi_cmdset_0001.c,v 1.184 2005/10/25 20:28:40 nico Exp $
*
*
* 10/10/2000 Nicolas Pitre <nico@cam.org>
@@ -285,7 +285,10 @@ read_pri_intelext(struct map_info *map, __u16 adr)
sizeof(struct cfi_intelext_otpinfo);
/* Burst Read info */
- extra_size += (extp->MinorVersion < '4') ? 6 : 5;
+ extra_size += 2;
+ if (extp_size < sizeof(*extp) + extra_size)
+ goto need_more;
+ extra_size += extp->extra[extra_size-1];
/* Number of hardware-partitions */
extra_size += 1;
@@ -519,7 +522,7 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd,
sizeof(struct cfi_intelext_otpinfo);
/* Burst Read info */
- offs += (extp->MinorVersion < '4') ? 6 : 5;
+ offs += extp->extra[offs+1]+2;
/* Number of partition regions */
numregions = extp->extra[offs];