diff options
| author | Ingo Molnar <mingo@elte.hu> | 2012-02-07 10:00:06 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-02-07 10:00:41 +0100 |
| commit | 52fce956a7568504a1da90c14b9bf2deaad401bd (patch) | |
| tree | 5f9ed93cbdfa8f8356fc0daea8fa2da07eeae7bd /lib/mpi/mpi-div.c | |
| parent | 290436c9c61ac983b1bd425da67242a4357c7701 (diff) | |
| parent | 9dac6a29e0ce0cd9dec497baa123e216b00b525d (diff) | |
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
perf/core fixes and improvements.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/mpi/mpi-div.c')
| -rw-r--r-- | lib/mpi/mpi-div.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/mpi/mpi-div.c b/lib/mpi/mpi-div.c index c3087d1390c..f68cbbb4d4a 100644 --- a/lib/mpi/mpi-div.c +++ b/lib/mpi/mpi-div.c @@ -149,6 +149,9 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den) mpi_ptr_t marker[5]; int markidx = 0; + if (!dsize) + return -EINVAL; + memset(marker, 0, sizeof(marker)); /* Ensure space is enough for quotient and remainder. @@ -207,6 +210,8 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den) * numerator would be gradually overwritten by the quotient limbs. */ if (qp == np) { /* Copy NP object to temporary space. */ np = marker[markidx++] = mpi_alloc_limb_space(nsize); + if (!np) + goto nomem; MPN_COPY(np, qp, nsize); } } else /* Put quotient at top of remainder. */ |