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crypto: Make block callbacks return 0 on success

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They currently return the value of their headerlen/buflen parameter on
success. Returning 0 instead makes it clear that short reads/writes are
not possible.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-5-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
This commit is contained in:
Alberto Faria 2022-06-09 16:27:38 +01:00 • committed by Hanna Reitz
parent 353a5d84b2
commit 757dda54b4
6 changed files with 79 additions and 79 deletions
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8
crypto/block-luks.c
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@ -495,7 +495,7 @@ qcrypto_block_luks_load_header(QCryptoBlock *block,
void *opaque,
Error **errp)
{
ssize_t rv;
int rv;
size_t i;
QCryptoBlockLUKS *luks = block->opaque;
@ -856,7 +856,7 @@ qcrypto_block_luks_store_key(QCryptoBlock *block,
QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
splitkey, splitkeylen,
opaque,
errp) != splitkeylen) {
errp) < 0) {
goto cleanup;
}
@ -903,7 +903,7 @@ qcrypto_block_luks_load_key(QCryptoBlock *block,
g_autofree uint8_t *splitkey = NULL;
size_t splitkeylen;
g_autofree uint8_t *possiblekey = NULL;
ssize_t rv;
int rv;
g_autoptr(QCryptoCipher) cipher = NULL;
uint8_t keydigest[QCRYPTO_BLOCK_LUKS_DIGEST_LEN];
g_autoptr(QCryptoIVGen) ivgen = NULL;
@ -1193,7 +1193,7 @@ qcrypto_block_luks_erase_key(QCryptoBlock *block,
garbagesplitkey,
splitkeylen,
opaque,
&local_err) != splitkeylen) {
&local_err) < 0) {
error_propagate(errp, local_err);
return -1;
}