[PATCH next] x86/mm: Fix uninitialized variable in register_page_bootmem_memmap()

[Dan Carpenter <dan.carpenter@linaro.org>]

Smatch complains that "next" could be uninitialized.  The "next"
assignment was accidentally left out when we moved these lines to earlier
in the function.

Fixes: bdadaec1526d ("x86/mm: make register_page_bootmem_memmap handle PTE mappings")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
This goes through the -mm tree.

 arch/x86/mm/init_64.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index e7572af639a4..6e8e4ef5312a 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1600,8 +1600,10 @@ void register_page_bootmem_memmap(unsigned long section_nr,
 		get_page_bootmem(section_nr, pud_page(*pud), MIX_SECTION_INFO);
 
 		pmd = pmd_offset(pud, addr);
-		if (pmd_none(*pmd))
+		if (pmd_none(*pmd)) {
+			next = (addr + PAGE_SIZE) & PAGE_MASK;
 			continue;
+		}
 
 		if (!boot_cpu_has(X86_FEATURE_PSE) || !pmd_leaf(*pmd)) {
 			next = (addr + PAGE_SIZE) & PAGE_MASK;
-- 
2.47.2