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x86: check boundary in setup_node_bootmem()
[firefly-linux-kernel-4.4.55.git]
/
arch
/
x86
/
mm
/
numa_64.c
diff --git
a/arch/x86/mm/numa_64.c
b/arch/x86/mm/numa_64.c
index d73aaa8923716b374970f45781251c249c855172..2d05a12029dc3d216814eb2a9e914b389014407a 100644
(file)
--- a/
arch/x86/mm/numa_64.c
+++ b/
arch/x86/mm/numa_64.c
@@
-188,6
+188,9
@@
void __init setup_node_bootmem(int nodeid, unsigned long start,
const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
int nid;
+ if (!end)
+ return;
+
start = roundup(start, ZONE_ALIGN);
printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid,