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authorLinus Torvalds2017-05-20 00:03:24 +0200
committerLinus Torvalds2017-05-20 00:03:24 +0200
commit1fbbed4137de93e02fc62776b8bf08a2d9ae1141 (patch)
tree1a50291637d723e1a49eed91d5d15d22452750c4 /drivers/of/fdt.c
parentMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm... (diff)
parentof: fdt: add missing allocation-failure check (diff)
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Merge tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring: - fix missing allocation failure handling in fdt code - fix dtc compile error on 32-bit hosts - revert bad sparse changes causing GCC7 warnings * tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: fdt: add missing allocation-failure check dtc: check.c fix compile error Partially Revert "of: fix sparse warnings in fdt, irq, reserved mem, and resolver code"
Diffstat (limited to 'drivers/of/fdt.c')
-rw-r--r--drivers/of/fdt.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 3080d9dd031d..43bd69dceabf 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -507,6 +507,9 @@ void *__unflatten_device_tree(const void *blob,
/* Allocate memory for the expanded device tree */
mem = dt_alloc(size + 4, __alignof__(struct device_node));
+ if (!mem)
+ return NULL;
+
memset(mem, 0, size);
*(__be32 *)(mem + size) = cpu_to_be32(0xdeadbeef);