diff options
| -rw-r--r-- | include/asm-powerpc/uaccess.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/include/asm-powerpc/uaccess.h b/include/asm-powerpc/uaccess.h index 3872e924cdd..d83fc29c2bb 100644 --- a/include/asm-powerpc/uaccess.h +++ b/include/asm-powerpc/uaccess.h @@ -7,6 +7,7 @@ #include <linux/sched.h> #include <linux/errno.h> #include <asm/processor.h> +#include <asm/page.h> #define VERIFY_READ 0 #define VERIFY_WRITE 1 @@ -179,9 +180,11 @@ do { \ #define __put_user_nocheck(x, ptr, size) \ ({ \ long __pu_err; \ - might_sleep(); \ + __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ + if (!is_kernel_addr((unsigned long)__pu_addr)) \ + might_sleep(); \ __chk_user_ptr(ptr); \ - __put_user_size((x), (ptr), (size), __pu_err); \ + __put_user_size((x), __pu_addr, (size), __pu_err); \ __pu_err; \ }) @@ -258,9 +261,11 @@ do { \ ({ \ long __gu_err; \ unsigned long __gu_val; \ + const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ __chk_user_ptr(ptr); \ - might_sleep(); \ - __get_user_size(__gu_val, (ptr), (size), __gu_err); \ + if (!is_kernel_addr((unsigned long)__gu_addr)) \ + might_sleep(); \ + __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ (x) = (__typeof__(*(ptr)))__gu_val; \ __gu_err; \ }) @@ -270,9 +275,11 @@ do { \ ({ \ long __gu_err; \ long long __gu_val; \ + const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ __chk_user_ptr(ptr); \ - might_sleep(); \ - __get_user_size(__gu_val, (ptr), (size), __gu_err); \ + if (!is_kernel_addr((unsigned long)__gu_addr)) \ + might_sleep(); \ + __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ (x) = (__typeof__(*(ptr)))__gu_val; \ __gu_err; \ }) |