diff options
Diffstat (limited to 'arch/nios2')
| -rw-r--r-- | arch/nios2/include/asm/uaccess.h | 13 | ||||
| -rw-r--r-- | arch/nios2/mm/dma-mapping.c | 12 | ||||
| -rw-r--r-- | arch/nios2/mm/init.c | 2 | ||||
| -rw-r--r-- | arch/nios2/platform/platform.c | 4 |
4 files changed, 16 insertions, 15 deletions
diff --git a/arch/nios2/include/asm/uaccess.h b/arch/nios2/include/asm/uaccess.h index caa51ff85a3c..0ab82324c817 100644 --- a/arch/nios2/include/asm/uaccess.h +++ b/arch/nios2/include/asm/uaccess.h @@ -102,9 +102,12 @@ extern long __copy_to_user(void __user *to, const void *from, unsigned long n); static inline long copy_from_user(void *to, const void __user *from, unsigned long n) { - if (!access_ok(VERIFY_READ, from, n)) - return n; - return __copy_from_user(to, from, n); + unsigned long res = n; + if (access_ok(VERIFY_READ, from, n)) + res = __copy_from_user(to, from, n); + if (unlikely(res)) + memset(to + (n - res), 0, res); + return res; } static inline long copy_to_user(void __user *to, const void *from, @@ -139,7 +142,7 @@ extern long strnlen_user(const char __user *s, long n); #define __get_user_unknown(val, size, ptr, err) do { \ err = 0; \ - if (copy_from_user(&(val), ptr, size)) { \ + if (__copy_from_user(&(val), ptr, size)) { \ err = -EFAULT; \ } \ } while (0) @@ -166,7 +169,7 @@ do { \ ({ \ long __gu_err = -EFAULT; \ const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \ - unsigned long __gu_val; \ + unsigned long __gu_val = 0; \ __get_user_common(__gu_val, sizeof(*(ptr)), __gu_ptr, __gu_err);\ (x) = (__force __typeof__(x))__gu_val; \ __gu_err; \ diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c index 90422c367ed3..d800fad87896 100644 --- a/arch/nios2/mm/dma-mapping.c +++ b/arch/nios2/mm/dma-mapping.c @@ -59,7 +59,7 @@ static inline void __dma_sync_for_cpu(void *vaddr, size_t size, } static void *nios2_dma_alloc(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs) + dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) { void *ret; @@ -84,7 +84,7 @@ static void *nios2_dma_alloc(struct device *dev, size_t size, } static void nios2_dma_free(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle, struct dma_attrs *attrs) + dma_addr_t dma_handle, unsigned long attrs) { unsigned long addr = (unsigned long) CAC_ADDR((unsigned long) vaddr); @@ -93,7 +93,7 @@ static void nios2_dma_free(struct device *dev, size_t size, void *vaddr, static int nios2_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction, - struct dma_attrs *attrs) + unsigned long attrs) { int i; @@ -113,7 +113,7 @@ static int nios2_dma_map_sg(struct device *dev, struct scatterlist *sg, static dma_addr_t nios2_dma_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction direction, - struct dma_attrs *attrs) + unsigned long attrs) { void *addr = page_address(page) + offset; @@ -123,14 +123,14 @@ static dma_addr_t nios2_dma_map_page(struct device *dev, struct page *page, static void nios2_dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, enum dma_data_direction direction, - struct dma_attrs *attrs) + unsigned long attrs) { __dma_sync_for_cpu(phys_to_virt(dma_address), size, direction); } static void nios2_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, enum dma_data_direction direction, - struct dma_attrs *attrs) + unsigned long attrs) { void *addr; int i; diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c index e75c75d249d6..c92fe4234009 100644 --- a/arch/nios2/mm/init.c +++ b/arch/nios2/mm/init.c @@ -89,7 +89,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end) } #endif -void __init_refok free_initmem(void) +void __ref free_initmem(void) { free_initmem_default(-1); } diff --git a/arch/nios2/platform/platform.c b/arch/nios2/platform/platform.c index d478773f758a..2a35154ca153 100644 --- a/arch/nios2/platform/platform.c +++ b/arch/nios2/platform/platform.c @@ -9,7 +9,6 @@ */ #include <linux/init.h> -#include <linux/of_platform.h> #include <linux/of_address.h> #include <linux/of_fdt.h> #include <linux/err.h> @@ -39,8 +38,7 @@ static int __init nios2_soc_device_init(void) } } - return of_platform_populate(NULL, of_default_bus_match_table, - NULL, NULL); + return 0; } device_initcall(nios2_soc_device_init); |
