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Subject[PATCH 01/10] ptrace: Use copy_siginfo in setsiginfo and getsiginfo
Now that copy_siginfo copies all of the fields this is safe, safer (as
all of the bits are guaranteed to be copied), clearer, and less error
prone than using a structure copy.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
kernel/ptrace.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index ec4365da9be8..f3c82e26b995 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -659,7 +659,7 @@ static int ptrace_getsiginfo(struct task_struct *child, siginfo_t *info)
if (lock_task_sighand(child, &flags)) {
error = -EINVAL;
if (likely(child->last_siginfo != NULL)) {
- *info = *child->last_siginfo;
+ copy_siginfo(info, child->last_siginfo);
error = 0;
}
unlock_task_sighand(child, &flags);
@@ -675,7 +675,7 @@ static int ptrace_setsiginfo(struct task_struct *child, const siginfo_t *info)
if (lock_task_sighand(child, &flags)) {
error = -EINVAL;
if (likely(child->last_siginfo != NULL)) {
- *child->last_siginfo = *info;
+ copy_siginfo(child->last_siginfo, info);
error = 0;
}
unlock_task_sighand(child, &flags);
--
2.14.1
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