dump: Rename try_dump_socket

Try meant that it might not be a socket, but with local fds we do know
it for sure.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

cr-dump.c

@@ -352,12 +352,8 @@ static int dump_one_fd(pid_t pid, int fd, int lfd,
 		goto out_close;
 	}
 
-	if (S_ISSOCK(fd_stat.st_mode)) {
-		err = try_dump_socket(pid, fd, cr_fdset, sk_queue);
-		if (err)
-			pr_perror("Failed to open %d", fd);
-		return err;
-	}
+	if (S_ISSOCK(fd_stat.st_mode))
+		return dump_socket(pid, fd, cr_fdset, sk_queue);
 
 	fill_fd_params(pid, fd, lfd, &p);
 

include/sockets.h

@@ -22,7 +22,7 @@ struct sk_queue {
 };
 
 struct cr_fdset;
-extern int try_dump_socket(pid_t pid, int fd, const struct cr_fdset *cr_fdset,
+extern int dump_socket(pid_t pid, int fd, const struct cr_fdset *cr_fdset,
 			   struct sk_queue *queue);
 
 extern int collect_sockets(void);

sockets.c

@@ -381,7 +381,7 @@ err:
 	return -1;
 }
 
-int try_dump_socket(pid_t pid, int fd, const struct cr_fdset *cr_fdset,
+int dump_socket(pid_t pid, int fd, const struct cr_fdset *cr_fdset,
 		    struct sk_queue *queue)
 {
 	struct socket_desc *sk;