From: Corentin LABBE <clabbe.montjoie@gmail.com>
Date: Tue, 13 Dec 2016 14:51:10 +0000 (+0100)
Subject: hwrng: core - rewrite better comparison to NULL
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2a971e3b248775f808950bdc0ac75f12a2853eff;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

hwrng: core - rewrite better comparison to NULL

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>
---

diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 4d03b9798e25..3e565e12f397 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -442,8 +442,7 @@ 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);