1 files changed, 3 insertions, 0 deletions
diff --git a/lib/mpi/mpiutil.c b/lib/mpi/mpiutil.c
index 6bfc41f62b8..26e4ed31e25 100644
--- a/lib/mpi/mpiutil.c
+++ b/lib/mpi/mpiutil.c
@@ -58,6 +58,9 @@ mpi_ptr_t mpi_alloc_limb_space(unsigned nlimbs)
 {
 	size_t len = nlimbs * sizeof(mpi_limb_t);
 
+	if (!len)
+		return NULL;
+
 	return kmalloc(len, GFP_KERNEL);
 }