tile: avoid struct vm_struct leak

If ioreamp_prot() fails in ioremap_page_range() due to kernel memory
exhaustion, we previously would leak a struct vm_struct.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index dfd63ce..2bd572b 100644 (file)
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -568,7 +568,7 @@ void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size,
        addr = area->addr;
        if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
                               phys_addr, pgprot)) {
-               remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
+               free_vm_area(area);
                return NULL;
        }
        return (__force void __iomem *) (offset + (char *)addr);