[PATCH 31/32] commit-graph.c: fix code that could convert the result of an integer multiplication to a larger type

[Elia Pinto <gitter.spiros@gmail.com>]

Fix the LGTM warning fired by the rule that finds code that could convert the result of an integer
multiplication to a larger type. Since the conversion applies after the multiplication,
arithmetic overflow may still occur.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
---
 commit-graph.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/commit-graph.c b/commit-graph.c
index a0f868522b..0be15f1cd4 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -1415,8 +1415,8 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 
 	chunk_offsets[0] = 8 + (num_chunks + 1) * GRAPH_CHUNKLOOKUP_WIDTH;
 	chunk_offsets[1] = chunk_offsets[0] + GRAPH_FANOUT_SIZE;
-	chunk_offsets[2] = chunk_offsets[1] + hashsz * ctx->commits.nr;
-	chunk_offsets[3] = chunk_offsets[2] + (hashsz + 16) * ctx->commits.nr;
+	chunk_offsets[2] = chunk_offsets[1] + (uint64_t)hashsz * ctx->commits.nr;
+	chunk_offsets[3] = chunk_offsets[2] + ((uint64_t)hashsz + 16) * ctx->commits.nr;
 
 	num_chunks = 3;
 	if (ctx->num_extra_edges) {
@@ -1426,7 +1426,7 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 	}
 	if (ctx->num_commit_graphs_after > 1) {
 		chunk_offsets[num_chunks + 1] = chunk_offsets[num_chunks] +
-						hashsz * (ctx->num_commit_graphs_after - 1);
+						(uint64_t)hashsz * (ctx->num_commit_graphs_after - 1);
 		num_chunks++;
 	}
 
@@ -1454,7 +1454,7 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 			    num_chunks);
 		ctx->progress = start_delayed_progress(
 			progress_title.buf,
-			num_chunks * ctx->commits.nr);
+			(uint64_t)num_chunks * ctx->commits.nr);
 	}
 	write_graph_chunk_fanout(f, ctx);
 	write_graph_chunk_oids(f, hashsz, ctx);
-- 
2.24.0.rc0.467.g566ccdd3e4.dirty