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-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index e772803b495..8664feebc93 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -329,6 +329,7 @@ read_pri_intelext(struct map_info *map, __u16 adr)
{
struct cfi_private *cfi = map->fldrv_priv;
struct cfi_pri_intelext *extp;
+ unsigned int extra_size = 0;
unsigned int extp_size = sizeof(*extp);
again:
@@ -352,19 +353,24 @@ read_pri_intelext(struct map_info *map, __u16 adr)
extp->BlkStatusRegMask = le16_to_cpu(extp->BlkStatusRegMask);
extp->ProtRegAddr = le16_to_cpu(extp->ProtRegAddr);
- if (extp->MajorVersion == '1' && extp->MinorVersion >= '3') {
- unsigned int extra_size = 0;
- int nb_parts, i;
+ if (extp->MinorVersion >= '0') {
+ extra_size = 0;
/* Protection Register info */
extra_size += (extp->NumProtectionFields - 1) *
sizeof(struct cfi_intelext_otpinfo);
+ }
+ if (extp->MinorVersion >= '1') {
/* Burst Read info */
extra_size += 2;
if (extp_size < sizeof(*extp) + extra_size)
goto need_more;
- extra_size += extp->extra[extra_size-1];
+ extra_size += extp->extra[extra_size - 1];
+ }
+
+ if (extp->MinorVersion >= '3') {
+ int nb_parts, i;
/* Number of hardware-partitions */
extra_size += 1;