| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 146/264] hwrng: core - rewrite better comparison to NULL | Date | Thu, 23 Jun 2022 18:42:19 +0200 |
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From: Corentin LABBE <clabbe.montjoie@gmail.com>
commit 2a971e3b248775f808950bdc0ac75f12a2853eff upstream.
This patch fix the checkpatch warning "Comparison to NULL could be written "!ptr"
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- 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);
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