crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
authorVladimir Zapolskiy <vz@mleia.com>
Sun, 6 Mar 2016 01:21:52 +0000 (03:21 +0200)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 11 Mar 2016 13:19:19 +0000 (21:19 +0800)
commit9b52d55f4f0e2bb9a34abbcf99e05e17f1b3b281
tree405dc4efa814dc0e2e32d43558d155e9446d0de4
parent84a0ced0b6b47755bf26931ad5ed0ad267139964
crypto: atmel - fix checks of error code returned by devm_ioremap_resource()

The change fixes potential oops while accessing iomem on invalid
address, if devm_ioremap_resource() fails due to some reason.

The devm_ioremap_resource() function returns ERR_PTR() and never
returns NULL, which makes useless a following check for NULL.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Fixes: b0e8b3417a62 ("crypto: atmel - use devm_xxx() managed function")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/atmel-aes.c
drivers/crypto/atmel-sha.c
drivers/crypto/atmel-tdes.c