mw_debug: Fix memory overflow with "sim" backend

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years ago · b8df0647fd
parent 84ab28b3d2
commit b8df0647fd
1 changed files with 1 additions and 1 deletions
--- a/scripts/mw_debug/mw_debug.c
+++ b/scripts/mw_debug/mw_debug.c
@ -176,7 +176,7 @@ static int sim_command(uint8_t op, uint8_t addr, uint64_t *data)
 		printf("\n");
 	}
 	write(sim_fd, buf, p - buf);
-	r = read(sim_fd, buf, 127);
+	r = read(sim_fd, buf, sizeof(buf));
 	if (0 && r > 0) {
 		int i;