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[PATCH 1/5] kern: comment unused variable


From: Marin Ramesa
Subject: [PATCH 1/5] kern: comment unused variable
Date: Sun, 10 Nov 2013 22:50:20 +0100

Variable reply_port is never used. There is indication in the comments
that it might be used in future function call, so comment it.

* kern/ipc_mig.c (syscall_device_writev_request): Comment variable.

---
 kern/ipc_mig.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kern/ipc_mig.c b/kern/ipc_mig.c
index e1532ac..2d93eaa 100644
--- a/kern/ipc_mig.c
+++ b/kern/ipc_mig.c
@@ -979,7 +979,7 @@ syscall_device_writev_request(mach_port_t   device_name,
                              vm_size_t         iocount)
 {
        device_t        dev;
-       ipc_port_t      reply_port;
+       /*ipc_port_t    reply_port;*/
        io_return_t     res;
 
        /*
@@ -1000,9 +1000,10 @@ syscall_device_writev_request(mach_port_t        
device_name,
        /*
         * Translate reply port.
         */
-       if (reply_name == MACH_PORT_NULL)
+       /*if (reply_name == MACH_PORT_NULL)
                reply_port = IP_NULL;
-       else {
+       */
+       if (reply_name != MACH_PORT_NULL) {
                /* Homey don't play that. */
                device_deallocate(dev);
                return KERN_INVALID_RIGHT;
-- 
1.8.1.4




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