From: Corentin LABBE <clabbe.montjoie@xxxxxxxxx> commit 2a971e3b248775f808950bdc0ac75f12a2853eff upstream. This patch fix the checkpatch warning "Comparison to NULL could be written "!ptr" Signed-off-by: Corentin Labbe <clabbe.montjoie@xxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/char/hw_random/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/char/hw_random/core.c +++ b/drivers/char/hw_random/core.c @@ -439,8 +439,7 @@ int hwrng_register(struct hwrng *rng) int err = -EINVAL; struct hwrng *old_rng, *tmp; - if (rng->name == NULL || - (rng->data_read == NULL && rng->read == NULL)) + if (!rng->name || (!rng->data_read && !rng->read)) goto out; mutex_lock(&rng_mutex);
