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mtd: cfi_cmdset_0002: fix the check for valid primary extension versions 

Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3 [1][2].
Fix the check in cfi_cmdset_0002 accordingly.

[1] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf, page 19
[2] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_100_20011201.pdf

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Guillaume LECERF <glecerf@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Guillaume LECERF 2010-07-02 14:39:10 +02:00 committed by David Woodhouse
parent 9d2c4f3fe5
commit e17f47a14b
1 changed files with 12 additions and 3 deletions
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15
drivers/mtd/chips/cfi_cmdset_0002.c
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@ -417,16 +417,25 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
*/
cfi_fixup_major_minor(cfi, extp);
/*
* Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3
* see: http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf, page 19 and on
* http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_100_20011201.pdf
*/
if (extp->MajorVersion != '1' ||
(extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
(extp->MajorVersion == '1' && ( extp->MinorVersion < '0' || extp->MinorVersion > '3'))) {
printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query "
"version %c.%c.\n", extp->MajorVersion,
extp->MinorVersion);
"version %c.%c (%#02x/%#02x).\n",
extp->MajorVersion, extp->MinorVersion,
extp->MajorVersion, extp->MinorVersion);
kfree(extp);
kfree(mtd);
return NULL;
}
printk(KERN_INFO " Amd/Fujitsu Extended Query version %c.%c.\n",
extp->MajorVersion, extp->MinorVersion);
/* Install our own private info structure */
cfi->cmdset_priv = extp;