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authorSimon Glass <sjg@chromium.org>2014-06-02 22:04:51 -0600
committerTom Rini <trini@ti.com>2014-06-11 16:25:46 -0400
commit4f427a421fcba92b0325907fe79464c9791e85d5 (patch)
tree6b13739c671ea04f0e4e6a5f1f811aca1ecb8e08 /lib
parent63b4b5bae52e48528876e13e858ef934ac2e4a3b (diff)
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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>
Diffstat (limited to 'lib')
-rw-r--r--lib/rsa/rsa-sign.c28
1 files changed, 19 insertions, 9 deletions
diff --git a/lib/rsa/rsa-sign.c b/lib/rsa/rsa-sign.c
index ca8c120..48f3197 100644
--- a/lib/rsa/rsa-sign.c
+++ b/lib/rsa/rsa-sign.c
@@ -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;
}