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-rw-r--r--lib/mpi/mpicoder.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index 5f9c44cdf1f..4cc6442733f 100644
--- a/lib/mpi/mpicoder.c
+++ b/lib/mpi/mpicoder.c
@@ -37,7 +37,7 @@ MPI mpi_read_raw_data(const void *xbuffer, size_t nbytes)
mpi_limb_t a;
MPI val = NULL;
- while (nbytes >= 0 && buffer[0] == 0) {
+ while (nbytes > 0 && buffer[0] == 0) {
buffer++;
nbytes--;
}