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author | Laurence Withers <lwithers@guralp.com> | 2011-07-14 23:21:45 +0000 |
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committer | Wolfgang Denk <wd@denx.de> | 2011-07-26 14:00:24 +0200 |
commit | 07c07635b4f6d4ee2a03cd508beeeaccde4b9d7e (patch) | |
tree | 6d3f1fca1ea7566f73e9311b3a21a79173df2357 | |
parent | 9e9579bbf9780ced1153371cdc6aeb1ea8f0c0b6 (diff) | |
download | u-boot-07c07635b4f6d4ee2a03cd508beeeaccde4b9d7e.zip u-boot-07c07635b4f6d4ee2a03cd508beeeaccde4b9d7e.tar.gz u-boot-07c07635b4f6d4ee2a03cd508beeeaccde4b9d7e.tar.bz2 |
miiphy: use strncpy() not sprintf()
In miiphy_register() the new device's name was initialised by passing a
string parameter as the format string to sprintf(). As this would cause
problems if it ever contained a '%' symbol, switch to using strncpy()
instead.
Signed-off-by: Laurence Withers <lwithers@guralp.com>
Cc: Andy Fleming <afleming@freescale.com>
-rw-r--r-- | common/miiphyutil.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/common/miiphyutil.c b/common/miiphyutil.c index bcab74e..35ad357 100644 --- a/common/miiphyutil.c +++ b/common/miiphyutil.c @@ -111,7 +111,8 @@ void miiphy_register(const char *name, { struct mii_dev *new_dev; struct legacy_mii_dev *ldev; - unsigned int name_len; + + BUG_ON(strlen(name) >= MDIO_NAME_LEN); /* check if we have unique name */ new_dev = miiphy_get_dev_by_name(name); @@ -121,14 +122,6 @@ void miiphy_register(const char *name, } /* allocate memory */ - name_len = strlen(name); - if (name_len > MDIO_NAME_LEN - 1) { - /* Hopefully this won't happen, but if it does, we'll know */ - printf("miiphy_register: MDIO name was longer than %d\n", - MDIO_NAME_LEN); - return; - } - new_dev = mdio_alloc(); ldev = malloc(sizeof(*ldev)); @@ -141,7 +134,8 @@ void miiphy_register(const char *name, /* initalize mii_dev struct fields */ new_dev->read = legacy_miiphy_read; new_dev->write = legacy_miiphy_write; - sprintf(new_dev->name, name); + strncpy(new_dev->name, name, MDIO_NAME_LEN); + new_dev->name[MDIO_NAME_LEN - 1] = 0; ldev->read = read; ldev->write = write; new_dev->priv = ldev; |