diff options
Diffstat (limited to 'arch/arm/mach-bcm/bcm_kona_smc.c')
| -rw-r--r-- | arch/arm/mach-bcm/bcm_kona_smc.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/mach-bcm/bcm_kona_smc.c b/arch/arm/mach-bcm/bcm_kona_smc.c index d881c72..ddc2f17 100644 --- a/arch/arm/mach-bcm/bcm_kona_smc.c +++ b/arch/arm/mach-bcm/bcm_kona_smc.c @@ -45,6 +45,7 @@ static const struct of_device_id bcm_kona_smc_ids[] __initconst = { int __init bcm_kona_smc_init(void) { struct device_node *node; + const __be32 *prop_val; /* Read buffer addr and size from the device tree node */ node = of_find_matching_node(NULL, bcm_kona_smc_ids); @@ -52,12 +53,17 @@ int __init bcm_kona_smc_init(void) return -ENODEV; /* Don't care about size or flags of the DT node */ - bridge_data.buffer_addr = - be32_to_cpu(*of_get_address(node, 0, NULL, NULL)); - BUG_ON(!bridge_data.buffer_addr); + prop_val = of_get_address(node, 0, NULL, NULL); + if (!prop_val) + return -EINVAL; + + bridge_data.buffer_addr = be32_to_cpu(*prop_val); + if (!bridge_data.buffer_addr) + return -EINVAL; bridge_data.bounce = of_iomap(node, 0); - BUG_ON(!bridge_data.bounce); + if (!bridge_data.bounce) + return -ENOMEM; bridge_data.initialized = 1; |