From: Pekka Enberg Date: Thu, 5 Mar 2009 12:55:00 +0000 (+0200) Subject: x86: add table start and end sanity checks to 32-bit init_memory_mapping() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d58e854e36ddf241ebc243e4122c5ab087bf38df;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git x86: add table start and end sanity checks to 32-bit init_memory_mapping() Impact: cleanup This patch adds a sanity check to the 32-bit version of init_memory_mapping() to reduce the diff to the 64-bit version. Signed-off-by: Pekka Enberg Cc: Yinghai Lu LKML-Reference: <1236257708-27269-9-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 00c1d8508258..0a3707fb973b 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -1060,7 +1060,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, __flush_tlb_all(); - if (!after_bootmem) + if (!after_bootmem && table_end > table_start) reserve_early(table_start << PAGE_SHIFT, table_end << PAGE_SHIFT, "PGTABLE");