- if (write(pfd[1], &status, sizeof(status)) < 0)
- pr_err("failed to notify our parent: %d\n",
- getppid());
- close(pfd[1]);
+ if (pfd[1] >= 0) {
+ if (write(pfd[1], &status, sizeof(status)) < 0)
+ pr_err("failed to notify our parent: %d\n",
+ getppid());
+ close(pfd[1]);
+ }