diff options
Diffstat (limited to 'arch/mips/mm/ioremap.c')
| -rw-r--r-- | arch/mips/mm/ioremap.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c index 1601d90b087b..8317f337a86e 100644 --- a/arch/mips/mm/ioremap.c +++ b/arch/mips/mm/ioremap.c @@ -78,11 +78,15 @@ static int remap_area_pages(unsigned long address, phys_addr_t phys_addr, flush_cache_all(); BUG_ON(address >= end); do { + p4d_t *p4d; pud_t *pud; pmd_t *pmd; error = -ENOMEM; - pud = pud_alloc(&init_mm, dir, address); + p4d = p4d_alloc(&init_mm, dir, address); + if (!p4d) + break; + pud = pud_alloc(&init_mm, p4d, address); if (!pud) break; pmd = pmd_alloc(&init_mm, pud, address); |