From: Minfei Huang <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== commit 9962eea9e55f797f05f20ba6448929cab2a9f018 upstream. The variable pmd_idx is not initialized for the first iteration of the for loop. Assign the proper value which indexes the start address. Fixes: 719272c45b82 'x86, mm: only call early_ioremap_page_table_range_init() once' Signed-off-by: Minfei Huang <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Reviewed-by: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- arch/x86/mm/init_32.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 4287f1ffba7e..948e91b731a2 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -137,6 +137,7 @@ page_table_range_init_count(unsigned long start, unsigned long end) vaddr = start; pgd_idx = pgd_index(vaddr); + pmd_idx = pmd_index(vaddr); for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd_idx++) { for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); -- 2.6.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
