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| author | Paul Mundt <lethal@linux-sh.org> | 2012-02-24 13:23:23 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-02-24 13:23:23 +0900 |
| commit | 35eb304b5cd7b49d581bda79218b8134f3b689ea (patch) | |
| tree | 3d75d9ada70814161d035b2f9166fee05d257dfb /lib/mpi/mpi-div.c | |
| parent | ca0cc30109241f280eb871794620d7cf198bb582 (diff) | |
| parent | bb4c7e9a9908548b458f34afb2fee74dc0d49f90 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into rmobile-fixes-for-linus
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 c3087d1390ce..f68cbbb4d4a4 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. */ |