X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fum%2Fdrivers%2Ftty.c;h=d95d64309eaf3defc373ba6195a0b5fc03cbea45;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=e9eb9e3622c4f20162a857df99079e8fb6346f3d;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/arch/um/drivers/tty.c b/arch/um/drivers/tty.c
index e9eb9e362..d95d64309 100644
--- a/arch/um/drivers/tty.c
+++ b/arch/um/drivers/tty.c
@@ -1,17 +1,17 @@
-/* 
+/*
  * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
  * Licensed under the GPL
  */
 
 #include <stdio.h>
 #include <termios.h>
-#include <fcntl.h>
 #include <errno.h>
 #include <unistd.h>
 #include "chan_user.h"
 #include "user_util.h"
 #include "user.h"
 #include "os.h"
+#include "um_malloc.h"
 
 struct tty_chan {
 	char *dev;
@@ -19,68 +19,59 @@ struct tty_chan {
 	struct termios tt;
 };
 
-void *tty_chan_init(char *str, int device, struct chan_opts *opts)
+static void *tty_chan_init(char *str, int device, const struct chan_opts *opts)
 {
 	struct tty_chan *data;
 
 	if(*str != ':'){
 		printk("tty_init : channel type 'tty' must specify "
 		       "a device\n");
-		return(NULL);
+		return NULL;
 	}
 	str++;
 
-	if((data = um_kmalloc(sizeof(*data))) == NULL) 
-		return(NULL);
+	data = um_kmalloc(sizeof(*data));
+	if(data == NULL)
+		return NULL;
 	*data = ((struct tty_chan) { .dev 	= str,
 				     .raw 	= opts->raw });
-				     
-	return(data);
+
+	return data;
 }
 
-int tty_open(int input, int output, int primary, void *d, char **dev_out)
+static int tty_open(int input, int output, int primary, void *d,
+		    char **dev_out)
 {
 	struct tty_chan *data = d;
-	int fd;
+	int fd, err;
 
 	fd = os_open_file(data->dev, of_set_rw(OPENFLAGS(), input, output), 0);
-	if(fd < 0) return(fd);
+	if(fd < 0)
+		return fd;
+
 	if(data->raw){
-		tcgetattr(fd, &data->tt);
-		raw(fd, 0);
+		CATCH_EINTR(err = tcgetattr(fd, &data->tt));
+		if(err)
+			return err;
+
+		err = raw(fd);
+		if(err)
+			return err;
 	}
 
 	*dev_out = data->dev;
-	return(fd);
-}
-
-int tty_console_write(int fd, const char *buf, int n, void *d)
-{
-	struct tty_chan *data = d;
-
-	return(generic_console_write(fd, buf, n, &data->tt));
+	return fd;
 }
 
-struct chan_ops tty_ops = {
+const struct chan_ops tty_ops = {
 	.type		= "tty",
 	.init		= tty_chan_init,
 	.open		= tty_open,
 	.close		= generic_close,
 	.read		= generic_read,
 	.write		= generic_write,
-	.console_write	= tty_console_write,
+	.console_write	= generic_console_write,
 	.window_size	= generic_window_size,
 	.free		= generic_free,
 	.winch		= 0,
 };
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */