[PATCH] powerpc: kmalloc failure ignored in vio_build_iommu_table()
From: Roel Kluin <hidden>
Date: 2009-09-09 15:03:59
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Prevent NULL dereference if kmalloc() fails. Signed-off-by: Roel Kluin <redacted> --- Found with sed: http://kernelnewbies.org/roelkluin
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 819e59f..1f5266f 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c@@ -1054,6 +1054,8 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev) return NULL; tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); + if (tbl == NULL) + return NULL; of_parse_dma_window(dev->dev.archdata.of_node, dma_window, &tbl->it_index, &offset, &size);