[PULL 14/16] chardev: qemu_chr_open_fd(): add errp

["Daniel P. Berrangé" <berrange@redhat.com>]

From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

Every caller already support errp, let's go further.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 chardev/char-fd.c         | 12 ++++++++----
 chardev/char-file.c       |  6 +++++-
 chardev/char-pipe.c       |  9 ++++++++-
 chardev/char-serial.c     |  5 ++++-
 chardev/char-stdio.c      |  7 +++++--
 include/chardev/char-fd.h |  2 +-
 6 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/chardev/char-fd.c b/chardev/char-fd.c
index 739dc68c36..4ee286f323 100644
--- a/chardev/char-fd.c
+++ b/chardev/char-fd.c
@@ -206,14 +206,16 @@ int qmp_chardev_open_file_source(char *src, int flags, Error **errp)
 }
 
 /* open a character device to a unix fd */
-void qemu_chr_open_fd(Chardev *chr,
-                      int fd_in, int fd_out)
+bool qemu_chr_open_fd(Chardev *chr,
+                      int fd_in, int fd_out, Error **errp)
 {
     FDChardev *s = FD_CHARDEV(chr);
     g_autofree char *name = NULL;
 
     if (fd_out >= 0) {
-        qemu_set_blocking(fd_out, false, &error_abort);
+        if (!qemu_set_blocking(fd_out, false, errp)) {
+            return false;
+        }
     }
 
     if (fd_out == fd_in && fd_in >= 0) {
@@ -221,7 +223,7 @@ void qemu_chr_open_fd(Chardev *chr,
         name = g_strdup_printf("chardev-file-%s", chr->label);
         qio_channel_set_name(QIO_CHANNEL(s->ioc_in), name);
         s->ioc_out = QIO_CHANNEL(object_ref(s->ioc_in));
-        return;
+        return true;
     }
 
     if (fd_in >= 0) {
@@ -236,6 +238,8 @@ void qemu_chr_open_fd(Chardev *chr,
         name = g_strdup_printf("chardev-file-out-%s", chr->label);
         qio_channel_set_name(QIO_CHANNEL(s->ioc_out), name);
     }
+
+    return true;
 }
 
 static void char_fd_class_init(ObjectClass *oc, const void *data)
diff --git a/chardev/char-file.c b/chardev/char-file.c
index a9e8c5e0d7..89e9cb849c 100644
--- a/chardev/char-file.c
+++ b/chardev/char-file.c
@@ -92,7 +92,11 @@ static void qmp_chardev_open_file(Chardev *chr,
         }
     }
 
-    qemu_chr_open_fd(chr, in, out);
+    if (!qemu_chr_open_fd(chr, in, out, errp)) {
+        qemu_close(out);
+        qemu_close(in);
+        return;
+    }
 #endif
 }
 
diff --git a/chardev/char-pipe.c b/chardev/char-pipe.c
index 3d1b0ce2d2..e9f3bb8290 100644
--- a/chardev/char-pipe.c
+++ b/chardev/char-pipe.c
@@ -150,7 +150,14 @@ static void qemu_chr_open_pipe(Chardev *chr,
             return;
         }
     }
-    qemu_chr_open_fd(chr, fd_in, fd_out);
+
+    if (!qemu_chr_open_fd(chr, fd_in, fd_out, errp)) {
+        close(fd_in);
+        if (fd_out != fd_in) {
+            close(fd_out);
+        }
+        return;
+    }
 }
 
 #endif /* !_WIN32 */
diff --git a/chardev/char-serial.c b/chardev/char-serial.c
index 1ff31dcde3..c622d758db 100644
--- a/chardev/char-serial.c
+++ b/chardev/char-serial.c
@@ -276,7 +276,10 @@ static void qmp_chardev_open_serial(Chardev *chr,
     }
     tty_serial_init(fd, 115200, 'N', 8, 1);
 
-    qemu_chr_open_fd(chr, fd, fd);
+    if (!qemu_chr_open_fd(chr, fd, fd, errp)) {
+        close(fd);
+        return;
+    }
 }
 #endif /* __linux__ || __sun__ */
 
diff --git a/chardev/char-stdio.c b/chardev/char-stdio.c
index 193727e807..2568164a10 100644
--- a/chardev/char-stdio.c
+++ b/chardev/char-stdio.c
@@ -110,14 +110,17 @@ static void qemu_chr_open_stdio(Chardev *chr,
     if (!qemu_set_blocking(0, false, errp)) {
         return;
     }
+
+    if (!qemu_chr_open_fd(chr, 0, 1, errp)) {
+        return;
+    }
+
     atexit(term_exit);
 
     memset(&act, 0, sizeof(act));
     act.sa_handler = term_stdio_handler;
     sigaction(SIGCONT, &act, NULL);
 
-    qemu_chr_open_fd(chr, 0, 1);
-
     stdio_allow_signal = !opts->has_signal || opts->signal;
     qemu_chr_set_echo_stdio(chr, false);
 }
diff --git a/include/chardev/char-fd.h b/include/chardev/char-fd.h
index 9de0e440de..6fe43062ca 100644
--- a/include/chardev/char-fd.h
+++ b/include/chardev/char-fd.h
@@ -41,7 +41,7 @@ typedef struct FDChardev FDChardev;
 DECLARE_INSTANCE_CHECKER(FDChardev, FD_CHARDEV,
                          TYPE_CHARDEV_FD)
 
-void qemu_chr_open_fd(Chardev *chr, int fd_in, int fd_out);
+bool qemu_chr_open_fd(Chardev *chr, int fd_in, int fd_out, Error **errp);
 int qmp_chardev_open_file_source(char *src, int flags, Error **errp);
 
 #endif /* CHAR_FD_H */
-- 
2.50.1