fix unsigned comparison bug in posix_spawn

[musl] / src / process / posix_spawn.c

diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index c55907d..dd45012 100644 (file)
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -152,7 +152,7 @@ int __posix_spawnx(pid_t *restrict res, const char *restrict path,
        close(args.p[1]);
 
        if (pid > 0) {
-               if (read(args.p[0], &ec, sizeof ec) < sizeof ec) ec = 0;
+               if (read(args.p[0], &ec, sizeof ec) != sizeof ec) ec = 0;
                else waitpid(pid, &(int){0}, 0);
        } else {
                ec = -pid;