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| author | Dave Airlie <airlied@redhat.com> | 2016-12-05 17:11:48 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-12-05 17:11:48 +1000 |
| commit | f03ee46be9401e3434f52bb15e92d1e640f76438 (patch) | |
| tree | f0a1819bd3e44902578b80e1a03d1dde1c6099b8 /lib/mpi/mpi-pow.c | |
| parent | 0d5320fc194128a1a584a7e91a606cb3af2ded80 (diff) | |
| parent | 3e5de27e940d00d8d504dfb96625fb654f641509 (diff) | |
| download | op-kernel-dev-f03ee46be9401e3434f52bb15e92d1e640f76438.zip op-kernel-dev-f03ee46be9401e3434f52bb15e92d1e640f76438.tar.gz | |
Backmerge tag 'v4.9-rc8' into drm-next
Linux 4.9-rc8
Daniel requested this so we could apply some follow on fixes cleanly to -next.
Diffstat (limited to 'lib/mpi/mpi-pow.c')
| -rw-r--r-- | lib/mpi/mpi-pow.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/mpi/mpi-pow.c b/lib/mpi/mpi-pow.c index 5464c87..e24388a 100644 --- a/lib/mpi/mpi-pow.c +++ b/lib/mpi/mpi-pow.c @@ -64,8 +64,13 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod) if (!esize) { /* Exponent is zero, result is 1 mod MOD, i.e., 1 or 0 * depending on if MOD equals 1. */ - rp[0] = 1; res->nlimbs = (msize == 1 && mod->d[0] == 1) ? 0 : 1; + if (res->nlimbs) { + if (mpi_resize(res, 1) < 0) + goto enomem; + rp = res->d; + rp[0] = 1; + } res->sign = 0; goto leave; } |
