fdt: Update functions which write to an FDT to return -ENOSPC

When writing values into an FDT it is possible that there will be
insufficient space. If the caller gets a useful error then it can
potentially deal with the situation.

Adjust these functions to return -ENOSPC when the FDT is full.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2014-06-02 22:04:51 -06:00
committed by Tom Rini
parent 63b4b5bae5
commit 4f427a421f
3 changed files with 23 additions and 12 deletions

View File

@@ -429,20 +429,30 @@ int rsa_add_verify_data(struct image_sign_info *info, void *keydest)
ret = fdt_setprop_string(keydest, node, "key-name-hint",
info->keyname);
ret |= fdt_setprop_u32(keydest, node, "rsa,num-bits", bits);
ret |= fdt_setprop_u32(keydest, node, "rsa,n0-inverse", n0_inv);
ret |= fdt_add_bignum(keydest, node, "rsa,modulus", modulus, bits);
ret |= fdt_add_bignum(keydest, node, "rsa,r-squared", r_squared, bits);
ret |= fdt_setprop_string(keydest, node, FIT_ALGO_PROP,
info->algo->name);
if (!ret)
ret = fdt_setprop_u32(keydest, node, "rsa,num-bits", bits);
if (!ret)
ret = fdt_setprop_u32(keydest, node, "rsa,n0-inverse", n0_inv);
if (!ret) {
ret = fdt_add_bignum(keydest, node, "rsa,modulus", modulus,
bits);
}
if (!ret) {
ret = fdt_add_bignum(keydest, node, "rsa,r-squared", r_squared,
bits);
}
if (!ret) {
ret = fdt_setprop_string(keydest, node, FIT_ALGO_PROP,
info->algo->name);
}
if (info->require_keys) {
fdt_setprop_string(keydest, node, "required",
info->require_keys);
ret = fdt_setprop_string(keydest, node, "required",
info->require_keys);
}
BN_free(modulus);
BN_free(r_squared);
if (ret)
return -EIO;
return ret == FDT_ERR_NOSPACE ? -ENOSPC : -EIO;
return 0;
}