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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-28 08:34:10 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-28 08:34:10 +0100 |
| commit | 0edbf9e55295585bbe9df61b646ca5bf80a8e1eb (patch) | |
| tree | d9b6869ff7a245343a9b030511d4bfd18b00f192 /lib/mpi/mpi-pow.c | |
| parent | usb: ohci-da8xx: rename driver to ohci-da8xx (diff) | |
| parent | Linux 4.9-rc7 (diff) | |
| download | wireguard-linux-0edbf9e55295585bbe9df61b646ca5bf80a8e1eb.tar.xz wireguard-linux-0edbf9e55295585bbe9df61b646ca5bf80a8e1eb.zip | |
Merge 4.9-rc7 into usb-next
We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 5464c8744ea9..e24388a863a7 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; } |