diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2005-08-09 09:20:19 +0400 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-08-29 04:53:38 +0400 |
| commit | 95920324f51b3a12603cf6d9bacbd831f34c5b60 (patch) | |
| tree | f74faa0172cc88148e00b1484fd97fa90d2d9d23 /arch/ppc64 | |
| parent | 145ec7d51ae507c7cc8889ad05e24af05bbd9147 (diff) | |
| download | linux-95920324f51b3a12603cf6d9bacbd831f34c5b60.tar.xz | |
[PATCH] ppc64: unflatten_device_tree() should check if lmb_alloc() fails
unflatten_device_tree() doesn't check if lmb_alloc() succeeds or not, it
should. All it can do is panic, but at least there's an error message
(assuming you have some sort of console at that point).
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
arch/ppc64/kernel/prom.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64')
| -rw-r--r-- | arch/ppc64/kernel/prom.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c index 04b852d446a3..b21848826791 100644 --- a/arch/ppc64/kernel/prom.c +++ b/arch/ppc64/kernel/prom.c @@ -950,8 +950,13 @@ void __init unflatten_device_tree(void) DBG(" size is %lx, allocating...\n", size); /* Allocate memory for the expanded device tree */ - mem = (unsigned long)abs_to_virt(lmb_alloc(size + 4, - __alignof__(struct device_node))); + mem = lmb_alloc(size + 4, __alignof__(struct device_node)); + if (!mem) { + DBG("Couldn't allocate memory with lmb_alloc()!\n"); + panic("Couldn't allocate memory with lmb_alloc()!\n"); + } + mem = (unsigned long)abs_to_virt(mem); + ((u32 *)mem)[size / 4] = 0xdeadbeef; DBG(" unflattening...\n", mem); |