The kzfree function already performs the NULL pointer check. Therefore,
the DRBG code does not need to implement such check.
Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx>
---
crypto/drbg.c | 18 ++++++------------
1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/crypto/drbg.c b/crypto/drbg.c
index 73d21e5..8a95ca8 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1153,8 +1153,7 @@ static int drbg_seed(struct drbg_state *drbg, struct drbg_string *pers,
drbg->reseed_ctr = 1;
out:
- if (entropy)
- kzfree(entropy);
+ kzfree(entropy);
return ret;
}
@@ -1163,19 +1162,15 @@ static inline void drbg_dealloc_state(struct drbg_state *drbg)
{
if (!drbg)
return;
- if (drbg->V)
- kzfree(drbg->V);
+ kzfree(drbg->V);
drbg->V = NULL;
- if (drbg->C)
- kzfree(drbg->C);
+ kzfree(drbg->C);
drbg->C = NULL;
- if (drbg->scratchpad)
- kzfree(drbg->scratchpad);
+ kzfree(drbg->scratchpad);
drbg->scratchpad = NULL;
drbg->reseed_ctr = 0;
#ifdef CONFIG_CRYPTO_FIPS
- if (drbg->prev)
- kzfree(drbg->prev);
+ kzfree(drbg->prev);
drbg->prev = NULL;
drbg->fips_primed = false;
#endif
@@ -1295,8 +1290,7 @@ static int drbg_make_shadow(struct drbg_state *drbg, struct drbg_state **shadow)
return 0;
err:
- if (tmp)
- kzfree(tmp);
+ kzfree(tmp);
return ret;
}
--
1.9.3
--
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