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authorJames Hogan <james.hogan@imgtec.com>2013-11-14 10:14:37 +0000
committerJames Hogan <james.hogan@imgtec.com>2013-11-25 10:50:27 +0000
commitcdf8d75818e3cd30746d38f5fbcdb3745fd267a3 (patch)
tree93066237e17d9f3205a71d9edd72c083e9c84f7d /arch/metag
parent6ce4eac1f600b34f2f7f58f9cd8f0503d79e42ae (diff)
downloadlinux-cdf8d75818e3cd30746d38f5fbcdb3745fd267a3.tar.gz
metag: dma: remove dead code in dma_alloc_init()
Meta has 2 levels of page table so the pmd folds into the pud which folds into the pgd. Therefore the !pmd check in dma_alloc_init() is dead code since it essentially checks whether: (init_mm->pgd + 0x770) == 0 Remove the check. Reported-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
Diffstat (limited to 'arch/metag')
-rw-r--r--arch/metag/kernel/dma.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index db589ad5dbc..c700d625067 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -399,11 +399,6 @@ static int __init dma_alloc_init(void)
pgd = pgd_offset(&init_mm, CONSISTENT_START);
pud = pud_alloc(&init_mm, pgd, CONSISTENT_START);
pmd = pmd_alloc(&init_mm, pud, CONSISTENT_START);
- if (!pmd) {
- pr_err("%s: no pmd tables\n", __func__);
- ret = -ENOMEM;
- break;
- }
WARN_ON(!pmd_none(*pmd));
pte = pte_alloc_kernel(pmd, CONSISTENT_START);