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lib/mpi: added missing NULL check

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Added missing NULL check after mpi_alloc_limb_space().

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Dmitry Kasatkin
2012-01-26 19:13:18 +02:00
committed by James Morris
parent a6d68ecc56
commit 43b2c0aeaa
1 changed files with 2 additions and 0 deletions
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lib/mpi/mpi-div.c
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@@ -210,6 +210,8 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den)
* numerator would be gradually overwritten by the quotient limbs. */ * numerator would be gradually overwritten by the quotient limbs. */
if (qp == np) { /* Copy NP object to temporary space. */ if (qp == np) { /* Copy NP object to temporary space. */
np = marker[markidx++] = mpi_alloc_limb_space(nsize); np = marker[markidx++] = mpi_alloc_limb_space(nsize);
if (!np)
goto nomem;
MPN_COPY(np, qp, nsize); MPN_COPY(np, qp, nsize);
} }
} else /* Put quotient at top of remainder. */ } else /* Put quotient at top of remainder. */