diff options
Diffstat (limited to 'arch/powerpc/sysdev/dart_iommu.c')
| -rw-r--r-- | arch/powerpc/sysdev/dart_iommu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index fc5c5c23303e..2a751795ec1e 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -265,6 +265,9 @@ static void allocate_dart(void) * prefetching into invalid pages and corrupting data */ tmp = memblock_phys_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE); + if (!tmp) + panic("DART: table allocation failed\n"); + dart_emptyval = DARTMAP_VALID | ((tmp >> DART_PAGE_SHIFT) & DARTMAP_RPNMASK); |