arm64: simplify pgd_alloc
authorMark Rutland <mark.rutland@arm.com>
Wed, 5 Feb 2014 10:24:13 +0000 (10:24 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 5 Feb 2014 10:45:07 +0000 (10:45 +0000)
commit883d50a0ed403446437444a495356ce31e1197a3
tree6e2e6080ba260e114344cf25314c80e4439b2303
parentbfb67a5606376bb32cb6f93dc05cda2e8c2038a5
arm64: simplify pgd_alloc

Currently pgd_alloc has a redundant NULL check in its return path that
can be removed with no ill effects. With that removed it's also possible
to return early and eliminate the new_pgd temporary variable.

This patch applies said modifications, making the logic of pgd_alloc
correspond 1-1 with that of pgd_free.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/mm/pgd.c