Commit b16bf712 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

x86: fix leak un ioremap_page_range() failure 



Jan Beulich noticed it during code review that if a driver's ioremap()
fails (say due to -ENOMEM) then we might leak the struct vm_area.

Free it properly.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent f2dbe03d

arch/x86/mm/ioremap.c

+1 −1
Original line number Diff line number Diff line
@@ -162,7 +162,7 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, 
	area->phys_addr = phys_addr;

	vaddr = (unsigned long) area->addr;

	if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot)) {

		remove_vm_area((void *)(vaddr & PAGE_MASK));

		free_vm_area(area);

		return NULL;

	}