diff options
| author | Evgeny Zinoviev <me@ch1p.io> | 2021-02-09 04:41:29 +0300 |
|---|---|---|
| committer | Evgeny Zinoviev <me@ch1p.io> | 2021-02-09 04:41:29 +0300 |
| commit | 846c07f921701628f73cda15f96e9cb099c00555 (patch) | |
| tree | 6821a16781b4b52b0b7f1d31b482c78c879f7b6b | |
| parent | 4f0e286870e30f170461afc772f3cfd372f261b2 (diff) | |
comply with -Werror
| -rw-r--r-- | intelgpio.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/intelgpio.c b/intelgpio.c index 573f6b7..46d0e7d 100644 --- a/intelgpio.c +++ b/intelgpio.c @@ -73,9 +73,14 @@ int main(int argc, char *argv[]) } fseek(f, GPIO_BASE, SEEK_SET); - fread(&base, 2, 1, f); + size_t readed = fread(&base, 2, 1, f); fclose(f); + if (readed < 1) { + fprintf(stderr, "error: readed %lu bytes\n", readed); + return 1; + } + base &= 0xfffe; if (ioperm(base, 0x100, 1)) { |