[IPSEC]: Fix crypto_alloc_comp error checking
authorHerbert Xu <herbert@gondor.apana.org.au>
Wed, 7 Nov 2007 10:21:47 +0000 (02:21 -0800)
committerDavid S. Miller <davem@sunset.davemloft.net>
Wed, 7 Nov 2007 12:15:03 +0000 (04:15 -0800)
The function crypto_alloc_comp returns an errno instead of NULL
to indicate error.  So it needs to be tested with IS_ERR.

This is based on a patch by Vicenç Beltran Querol.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

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