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lib/mpi: Add the return value check of kcalloc()
[ Upstream commitdd827abe29
] Add the return value check of kcalloc() to avoid potential NULL ptr dereference. Fixes:a8ea8bdd9d
("lib/mpi: Extend the MPI library") Signed-off-by: Zizhuang Deng <sunsetdzz@gmail.com> Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -40,6 +40,8 @@ mpi_barrett_t mpi_barrett_init(MPI m, int copy)
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mpi_normalize(m);
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ctx = kcalloc(1, sizeof(*ctx), GFP_KERNEL);
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if (!ctx)
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return NULL;
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if (copy) {
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ctx->m = mpi_copy(m);
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