hwrng: core - remove redundant initialization of variable err

'err' will be assigned later and cleanup the redundant initialization.

Cc: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.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 adb3c2bd7783e8d6907c5a62da73466730b54204..322e3d0ea98cae9886ba5c5bff77b07104ffc18a 100644 (file)
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -323,7 +323,7 @@ static ssize_t hwrng_attr_current_store(struct device *dev,
                                        struct device_attribute *attr,
                                        const char *buf, size_t len)
 {
-       int err = -ENODEV;
+       int err;
        struct hwrng *rng, *old_rng, *new_rng;
 
        err = mutex_lock_interruptible(&rng_mutex);