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-rw-r--r--include/sys/epoll.h3
-rw-r--r--sysdeps/unix/sysv/linux/sys/epoll.h8
2 files changed, 6 insertions, 5 deletions
diff --git a/include/sys/epoll.h b/include/sys/epoll.h
index 8049381a26..b23bc9c7c0 100644
--- a/include/sys/epoll.h
+++ b/include/sys/epoll.h
@@ -9,7 +9,8 @@ libc_hidden_proto (epoll_pwait)
 #else
 extern int __epoll_pwait2_time64 (int fd, struct epoll_event *ev, int maxev,
 				  const struct __timespec64 *tmo,
-				  const sigset_t *s);
+				  const sigset_t *s)
+       __nonnull ((2));
 libc_hidden_proto (__epoll_pwait2_time64)
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/sys/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h
index b17d344e79..23872c9438 100644
--- a/sysdeps/unix/sysv/linux/sys/epoll.h
+++ b/sysdeps/unix/sysv/linux/sys/epoll.h
@@ -123,7 +123,7 @@ extern int epoll_ctl (int __epfd, int __op, int __fd,
    __THROW.  */
 extern int epoll_wait (int __epfd, struct epoll_event *__events,
 		       int __maxevents, int __timeout)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 
 
 /* Same as epoll_wait, but the thread's signal mask is temporarily
@@ -134,7 +134,7 @@ extern int epoll_wait (int __epfd, struct epoll_event *__events,
 extern int epoll_pwait (int __epfd, struct epoll_event *__events,
 			int __maxevents, int __timeout,
 			const __sigset_t *__ss)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 
 /* Same as epoll_pwait, but the timeout as a timespec.
 
@@ -144,7 +144,7 @@ extern int epoll_pwait (int __epfd, struct epoll_event *__events,
 extern int epoll_pwait2 (int __epfd, struct epoll_event *__events,
 			 int __maxevents, const struct timespec *__timeout,
 			 const __sigset_t *__ss)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 #else
 # ifdef __REDIRECT
 extern int __REDIRECT (epoll_pwait2, (int __epfd, struct epoll_event *__ev,
@@ -152,7 +152,7 @@ extern int __REDIRECT (epoll_pwait2, (int __epfd, struct epoll_event *__ev,
 				      const struct timespec *__timeout,
 				      const __sigset_t *__ss),
 		       __epoll_pwait2_time64)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 # else
 #  define epoll_pwait2 __epoll_pwait2_time64
 # endif