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Fix static initializer warning

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In a hypothetical build with no curves, or in the future when we add a
new curve type and possibly forget updating this function with a new
block for the new type, we write to `ret` at the beginning or the
function then immediately overwrite it with MPI_CHK(check_privkey),
which static analyzers understandably find questionable.

Use `ret` here and check the key only if it was actually set.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2023-10-17 10:13:45 +02:00
parent 6d42921633
commit 745ec5d75e
1 changed files with 4 additions and 1 deletions
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3
library/ecp.c
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@ -3288,7 +3288,10 @@ int mbedtls_ecp_read_key(mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key,
MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&key->d, buf, buflen)); MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&key->d, buf, buflen));
} }
#endif #endif
if (ret == 0) {
MBEDTLS_MPI_CHK(mbedtls_ecp_check_privkey(&key->grp, &key->d)); MBEDTLS_MPI_CHK(mbedtls_ecp_check_privkey(&key->grp, &key->d));
}
cleanup: cleanup: