diff options
Diffstat (limited to 'include/linux/regset.h')
| -rw-r--r-- | include/linux/regset.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/regset.h b/include/linux/regset.h index 8abee6556223..8e0c9febf495 100644 --- a/include/linux/regset.h +++ b/include/linux/regset.h @@ -15,6 +15,7 @@ #include <linux/compiler.h> #include <linux/types.h> +#include <linux/bug.h> #include <linux/uaccess.h> struct task_struct; struct user_regset; @@ -335,8 +336,11 @@ static inline int copy_regset_to_user(struct task_struct *target, { const struct user_regset *regset = &view->regsets[setno]; + if (!regset->get) + return -EOPNOTSUPP; + if (!access_ok(VERIFY_WRITE, data, size)) - return -EIO; + return -EFAULT; return regset->get(target, regset, offset, size, NULL, data); } @@ -358,8 +362,11 @@ static inline int copy_regset_from_user(struct task_struct *target, { const struct user_regset *regset = &view->regsets[setno]; + if (!regset->set) + return -EOPNOTSUPP; + if (!access_ok(VERIFY_READ, data, size)) - return -EIO; + return -EFAULT; return regset->set(target, regset, offset, size, NULL, data); } |