diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/ssfdc.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c index ddbf015f4119..cf60a5e87f19 100644 --- a/drivers/mtd/ssfdc.c +++ b/drivers/mtd/ssfdc.c @@ -10,7 +10,6 @@ * published by the Free Software Foundation. */ -#include <linux/config.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -29,7 +28,7 @@ struct ssfdcr_record { int cis_block; /* block n. containing CIS/IDI */ int erase_size; /* phys_block_size */ unsigned short *logic_block_map; /* all zones (max 8192 phys blocks on - the 128MB) */ + the 128MiB) */ int map_len; /* n. phys_blocks on the card */ }; @@ -43,11 +42,11 @@ struct ssfdcr_record { #define MAX_LOGIC_BLK_PER_ZONE 1000 #define MAX_PHYS_BLK_PER_ZONE 1024 -#define KB(x) ( (x) * 1024L ) -#define MB(x) ( KB(x) * 1024L ) +#define KiB(x) ( (x) * 1024L ) +#define MiB(x) ( KiB(x) * 1024L ) /** CHS Table - 1MB 2MB 4MB 8MB 16MB 32MB 64MB 128MB + 1MiB 2MiB 4MiB 8MiB 16MiB 32MiB 64MiB 128MiB NCylinder 125 125 250 250 500 500 500 500 NHead 4 4 4 4 4 8 8 16 NSector 4 8 8 16 16 16 32 32 @@ -64,14 +63,14 @@ typedef struct { /* Must be ordered by size */ static const chs_entry_t chs_table[] = { - { MB( 1), 125, 4, 4 }, - { MB( 2), 125, 4, 8 }, - { MB( 4), 250, 4, 8 }, - { MB( 8), 250, 4, 16 }, - { MB( 16), 500, 4, 16 }, - { MB( 32), 500, 8, 16 }, - { MB( 64), 500, 8, 32 }, - { MB(128), 500, 16, 32 }, + { MiB( 1), 125, 4, 4 }, + { MiB( 2), 125, 4, 8 }, + { MiB( 4), 250, 4, 8 }, + { MiB( 8), 250, 4, 16 }, + { MiB( 16), 500, 4, 16 }, + { MiB( 32), 500, 8, 16 }, + { MiB( 64), 500, 8, 32 }, + { MiB(128), 500, 16, 32 }, { 0 }, }; @@ -109,14 +108,19 @@ static int get_valid_cis_sector(struct mtd_info *mtd) int ret, k, cis_sector; size_t retlen; loff_t offset; - uint8_t sect_buf[SECTOR_SIZE]; + uint8_t *sect_buf; + + cis_sector = -1; + + sect_buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); + if (!sect_buf) + goto out; /* * Look for CIS/IDI sector on the first GOOD block (give up after 4 bad * blocks). If the first good block doesn't contain CIS number the flash * is not SSFDC formatted */ - cis_sector = -1; for (k = 0, offset = 0; k < 4; k++, offset += mtd->erasesize) { if (!mtd->block_isbad(mtd, offset)) { ret = mtd->read(mtd, offset, SECTOR_SIZE, &retlen, @@ -140,6 +144,8 @@ static int get_valid_cis_sector(struct mtd_info *mtd) } } + kfree(sect_buf); + out: return cis_sector; } |