[Patch] UML: Remove a useless function

[WANG Cong]

arch/um/drivers/chan_kern.c::chan_out_fd() is not used by anyone.
Remove it.

Compile testing passed.

Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Signed-off-by: WANG Cong <wangcong@xxxxxxxxx>

---
 arch/um/drivers/chan_kern.c |   13 -------------
 arch/um/include/chan_kern.h |    1 -
 2 files changed, 0 insertions(+), 14 deletions(-)

diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index de22a10..6e51424 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -583,19 +583,6 @@ int parse_chan_pair(char *str, struct line *line, int device,
 	return 0;
 }
 
-int chan_out_fd(struct list_head *chans)
-{
-	struct list_head *ele;
-	struct chan *chan;
-
-	list_for_each(ele, chans) {
-		chan = list_entry(ele, struct chan, list);
-		if (chan->primary && chan->output)
-			return chan->fd;
-	}
-	return -1;
-}
-
 void chan_interrupt(struct list_head *chans, struct delayed_work *task,
 		    struct tty_struct *tty, int irq)
 {
diff --git a/arch/um/include/chan_kern.h b/arch/um/include/chan_kern.h
index de5f697..1e65145 100644
--- a/arch/um/include/chan_kern.h
+++ b/arch/um/include/chan_kern.h
@@ -44,7 +44,6 @@ extern void close_chan(struct list_head *chans, int delay_free_irq);
 extern int chan_window_size(struct list_head *chans, 
 			     unsigned short *rows_out, 
 			     unsigned short *cols_out);
-extern int chan_out_fd(struct list_head *chans);
 extern int chan_config_string(struct list_head *chans, char *str, int size,
 			      char **error_out);
 
-- 
1.5.2.4

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