[PATCH 2/7] hwrng: core: rewrite better comparison to NULL

From: Corentin Labbe
Date: Fri Dec 09 2016 - 09:25:42 EST


This patch fix the checkpatch warning "Comparison to NULL could be written "!ptr"

Signed-off-by: Corentin Labbe <clabbe.montjoie@xxxxxxxxx>
---
drivers/char/hw_random/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 00cbb81..7029246 100644
--- 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);
--
2.7.3