From 22124c9999f00340b062fff740db30187bf18454 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fernando=20Luis=20V=C3=A1zquez=20Cao?= Date: Thu, 18 Oct 2007 23:39:14 -0700 Subject: kmap leak fix for x86_32 kdump MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit copy_oldmem_page should not return leaving a page frame from the previous kernel mapped. Signed-off-by: Fernando Luis Vázquez Cao Acked-by: Vivek Goyal Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/kernel/crash_dump_32.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/crash_dump_32.c b/arch/x86/kernel/crash_dump_32.c index 32e75d0731a..72d0c56c1b4 100644 --- a/arch/x86/kernel/crash_dump_32.c +++ b/arch/x86/kernel/crash_dump_32.c @@ -47,6 +47,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, if (!kdump_buf_page) { printk(KERN_WARNING "Kdump: Kdump buffer page not" " allocated\n"); + kunmap_atomic(vaddr, KM_PTE0); return -EFAULT; } copy_page(kdump_buf_page, vaddr); -- cgit v1.2.3