1 files changed, 4 insertions, 1 deletions

diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index c20ef27ad876..c7e0a705eecf 100644
--- a/lib/mpi/mpicoder.c
+++ b/lib/mpi/mpicoder.c
@@ -446,8 +446,11 @@ MPI mpi_read_raw_from_sgl(struct scatterlist *sgl, unsigned int len)
                 const u8 *buff = sg_virt(sg);
                 int len = sg->length;
 
-                while (len-- && !*buff++)
+                while (len && !*buff) {
                         lzeros++;
+                        len--;
+                        buff++;
+                }
 
                 if (len && *buff)
                         break;