[PATCH] parisc: fix module_param iommu permission

[linux-2.6] / drivers / parisc / sba_iommu.c

diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index f1e7ccd5475bb413888272112e1937d67e4d5f36..26fece45e737db81c9e91e16a41bec540ea1ad54 100644 (file)
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -109,7 +109,7 @@ static unsigned long piranha_bad_128k = 0;
 
 #ifdef SBA_AGP_SUPPORT
 static int sba_reserve_agpgart = 1;
-module_param(sba_reserve_agpgart, int, 1);
+module_param(sba_reserve_agpgart, int, 0444);
 MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
 #endif
 
@@ -846,7 +846,7 @@ static void *sba_alloc_consistent(struct device *hwdev, size_t size,
        if (!hwdev) {
                /* only support PCI */
                *dma_handle = 0;
-               return 0;
+               return NULL;
        }
 
         ret = (void *) __get_free_pages(gfp, get_order(size));