diff options
| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2012-02-22 22:04:41 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-02-22 22:04:41 +0000 |
| commit | 61b80086a525c8a6081257ae40da5dee2bcaee16 (patch) | |
| tree | 675da35e4c03be3a5ca17bf6430e5b51dfed6296 /lib/mpi/mpi-div.c | |
| parent | Merge tag 'v3.3-rc2' into depends/rmk/for-armsoc (diff) | |
| parent | ARM: remove disable_fiq and arch_ret_to_user macros (diff) | |
| download | linux-dev-61b80086a525c8a6081257ae40da5dee2bcaee16.tar.xz linux-dev-61b80086a525c8a6081257ae40da5dee2bcaee16.zip | |
Merge branch 'entry-macro-cleanup' of git://sources.calxeda.com/kernel/linux into for-armsoc
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. */ |