diff options
Diffstat (limited to 'lib/digsig.c')
| -rw-r--r-- | lib/digsig.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/digsig.c b/lib/digsig.c index 07be6c1ef4e2..a121cbc5a46b 100644 --- a/lib/digsig.c +++ b/lib/digsig.c @@ -104,16 +104,18 @@ static int digsig_verify_rsa(struct key *key, datap = pkh->mpi; endp = ukp->data + ukp->datalen; - err = -ENOMEM; - for (i = 0; i < pkh->nmpi; i++) { unsigned int remaining = endp - datap; pkey[i] = mpi_read_from_buffer(datap, &remaining); - if (!pkey[i]) + if (IS_ERR(pkey[i])) { + err = PTR_ERR(pkey[i]); goto err; + } datap += remaining; } + err = -ENOMEM; + mblen = mpi_get_nbits(pkey[0]); mlen = DIV_ROUND_UP(mblen, 8); @@ -126,8 +128,10 @@ static int digsig_verify_rsa(struct key *key, nret = siglen; in = mpi_read_from_buffer(sig, &nret); - if (!in) + if (IS_ERR(in)) { + err = PTR_ERR(in); goto err; + } res = mpi_alloc(mpi_get_nlimbs(in) * 2); if (!res) |