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Upgrade to 4.4.50-rt62
[kvmfornfv.git]
/
kernel
/
lib
/
mpi
/
mpi-pow.c
diff --git
a/kernel/lib/mpi/mpi-pow.c
b/kernel/lib/mpi/mpi-pow.c
index
5464c87
..
e24388a
100644
(file)
--- a/
kernel/lib/mpi/mpi-pow.c
+++ b/
kernel/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. */
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;
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;
}
res->sign = 0;
goto leave;
}