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authorJulia Lawall <Julia.Lawall@lip6.fr>2013-01-21 14:02:51 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2013-02-04 14:16:52 +0100
commit7b5c253c88ae5f6770e426b1d3f135be75483200 (patch)
tree0d41aa0ddba3b50631781da69a786b178e14745c /drivers/acpi/utils.c
parentcrypto: crc32-pclmul - Kill warning on x86-32 (diff)
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crypto: atmel-aes - adjust duplicate test
Delete successive tests to the same location. The code tested the result of a previous allocation, that itself was already tested. It is changed to test the result of the most recent allocation. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @s exists@ local idexpression y; expression x,e; @@ *if ( \(x == NULL\|IS_ERR(x)\|y != 0\) ) { ... when forall return ...; } ... when != \(y = e\|y += e\|y -= e\|y |= e\|y &= e\|y++\|y--\|&y\) when != \(XT_GETPAGE(...,y)\|WMI_CMD_BUF(...)\) *if ( \(x == NULL\|IS_ERR(x)\|y != 0\) ) { ... when forall return ...; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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