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[PATCH 2/2] Look up device file name on device_open
From: |
rekado |
Subject: |
[PATCH 2/2] Look up device file name on device_open |
Date: |
Thu, 12 Sep 2013 14:10:55 +0800 |
A fresh `master_device' port is now obtained when accessing the device
file, not only on translator startup. This ensures that the device
can be re-opened after netdde has died.
---
devnode/devnode.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/devnode/devnode.c b/devnode/devnode.c
index 50011aa..218b308 100644
--- a/devnode/devnode.c
+++ b/devnode/devnode.c
@@ -164,6 +164,16 @@ ds_device_open (mach_port_t master_port, mach_port_t
reply_port,
|| device_name == NULL)
return D_NO_SUCH_DEVICE;
+ if (master_file != NULL)
+ {
+ if (master_device != MACH_PORT_NULL)
+ mach_port_deallocate (mach_task_self (), master_device);
+
+ master_device = file_name_lookup (master_file, 0, 0);
+ if (master_device == MACH_PORT_NULL)
+ error (1, errno, "file_name_lookup");
+ }
+
err = device_open (master_device, mode, device_name, device);
*devicetype = MACH_MSG_TYPE_MOVE_SEND;
return err;
--
1.8.3.1