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crypto: drbg - simplify ordering of linked list in drbg_ctr_df 

As reported by a static code analyzer, the code for the ordering of
the linked list can be simplified.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Stephan Mueller 2014-06-23 09:11:29 +02:00 committed by Herbert Xu
parent de18cd4b71
commit c0eedf8034
1 changed files with 5 additions and 5 deletions
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10
crypto/drbg.c
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@ -516,13 +516,13 @@ static int drbg_ctr_df(struct drbg_state *drbg,
S2.next = addtl;
/*
* splice in addtl between S2 and S4 -- we place S4 at the end of the
* input data chain
* Splice in addtl between S2 and S4 -- we place S4 at the end
* of the input data chain. As this code is only triggered when
* addtl is not NULL, no NULL checks are necessary.
*/
tempstr = addtl;
for (; NULL != tempstr; tempstr = tempstr->next)
if (NULL == tempstr->next)
break;
while (tempstr->next)
tempstr = tempstr->next;
tempstr->next = &S4;
/* 10.4.2 step 9 */