diff options
| author | Christian Hitz <christian.hitz@aizo.com> | 2011-10-12 09:32:05 +0200 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2012-01-26 16:09:02 -0600 |
| commit | 5454ddbc9b6be1b3a8fe1018bda697ac2b33b202 (patch) | |
| tree | e95d6010a9508907b67b29a1d67dda78ab9b420d /drivers/mtd/nand | |
| parent | ff8a8a718341e42af8642f01ce630d4a77c58f82 (diff) | |
nand: Sanitize ONFI strings.
[backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe]
This is part of the synchronization with the nand driver to the
Linux 3.0 state.
Signed-off-by: Christian Hitz <christian.hitz@aizo.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ed2640c3ef..8ab83036f5 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2477,10 +2477,29 @@ static void nand_set_defaults(struct nand_chip *chip, int busw) } #ifdef CONFIG_SYS_NAND_ONFI_DETECTION +/* + * sanitize ONFI strings so we can safely print them + */ +static void sanitize_string(char *s, size_t len) +{ + ssize_t i; + + /* null terminate */ + s[len - 1] = 0; + + /* remove non printable chars */ + for (i = 0; i < len - 1; i++) { + if (s[i] < ' ' || s[i] > 127) + s[i] = '?'; + } + + /* remove trailing spaces */ + strim(s); +} + static u16 onfi_crc16(u16 crc, u8 const *p, size_t len) { int i; - while (len--) { crc ^= *p++ << 8; for (i = 0; i < 8; i++) @@ -2541,6 +2560,8 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, return 0; } + sanitize_string(p->manufacturer, sizeof(p->manufacturer)); + sanitize_string(p->model, sizeof(p->model)); if (!mtd->name) mtd->name = p->model; mtd->writesize = le32_to_cpu(p->byte_per_page); |