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hwrng: core - rewrite better comparison to NULL

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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>
This commit is contained in:
Corentin LABBE 2016-12-13 15:51:10 +01:00 committed by Greg Kroah-Hartman
parent e1b293341c
commit 836e91b6c9
1 changed files with 1 additions and 2 deletions
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3
drivers/char/hw_random/core.c
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@ -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);