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authorDmitry V. Levin <ldv@altlinux.org>2017-08-22 02:16:11 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2017-09-20 00:55:54 +0300
commitf454322efbf6faee695f517c6b52c4dc03cacd3e (patch)
treeb1ecef65d6590d5f1421e1a4621a7e8ad3f24e6d /include/linux/compat.h
parent2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff)
downloadlinux-f454322efbf6faee695f517c6b52c4dc03cacd3e.tar.xz
signal: replace sigset_to_compat() with put_compat_sigset()
There are 4 callers of sigset_to_compat() in the entire kernel. One is in sparc compat rt_sigaction(2), the rest are in kernel/signal.c itself. All are followed by copy_to_user(), and all but the sparc one are under "if it's big-endian..." ifdefs. Let's transform sigset_to_compat() into put_compat_sigset() that also calls copy_to_user(). Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/compat.h')
-rw-r--r--include/linux/compat.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h
index a5619de3437d..ab1baa79abe8 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -456,7 +456,8 @@ asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
-extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
+extern int put_compat_sigset(compat_sigset_t __user *compat,
+ const sigset_t *set, unsigned int size);
asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,