Commit dd827abe authored by Zizhuang Deng's avatar Zizhuang Deng Committed by Herbert Xu
Browse files

lib/mpi: Add the return value check of kcalloc() 



Add the return value check of kcalloc() to avoid potential
NULL ptr dereference.

Fixes: a8ea8bdd ("lib/mpi: Extend the MPI library")
Signed-off-by: default avatarZizhuang Deng <sunsetdzz@gmail.com>
Reviewed-by: default avatarTianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4cab5dfd

lib/mpi/mpi-mod.c

+2 −0
Original line number Diff line number Diff line
@@ -40,6 +40,8 @@ mpi_barrett_t mpi_barrett_init(MPI m, int copy) 


	mpi_normalize(m);

	ctx = kcalloc(1, sizeof(*ctx), GFP_KERNEL);

	if (!ctx)

		return NULL;



	if (copy) {

		ctx->m = mpi_copy(m);