1 files changed, 17 insertions, 7 deletions

diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c
index ed9c59082d0d..1e82430b8444 100644
--- a/arch/um/drivers/ssl.c
+++ b/arch/um/drivers/ssl.c
@@ -46,9 +46,9 @@ static struct chan_opts opts = {
         .in_kernel      = 1,
 };
 
-static int ssl_config(char *str);
+static int ssl_config(char *str, char **error_out);
 static int ssl_get_config(char *dev, char *str, int size, char **error_out);
-static int ssl_remove(int n);
+static int ssl_remove(int n, char **error_out);
 
 static struct line_driver driver = {
         .name                   = "UML serial line",
@@ -80,9 +80,10 @@ static struct line serial_lines[NR_PORTS] =
 
 static struct lines lines = LINES_INIT(NR_PORTS);
 
-static int ssl_config(char *str)
+static int ssl_config(char *str, char **error_out)
 {
-        return line_config(serial_lines, ARRAY_SIZE(serial_lines), str, &opts);
+        return line_config(serial_lines, ARRAY_SIZE(serial_lines), str, &opts,
+                           error_out);
 }
 
 static int ssl_get_config(char *dev, char *str, int size, char **error_out)
@@ -91,9 +92,10 @@ static int ssl_get_config(char *dev, char *str, int size, char **error_out)
                                size, error_out);
 }
 
-static int ssl_remove(int n)
+static int ssl_remove(int n, char **error_out)
 {
-        return line_remove(serial_lines, ARRAY_SIZE(serial_lines), n);
+        return line_remove(serial_lines, ARRAY_SIZE(serial_lines), n,
+                           error_out);
 }
 
 static int ssl_open(struct tty_struct *tty, struct file *filp)
@@ -212,7 +214,15 @@ __uml_exitcall(ssl_exit);
 
 static int ssl_chan_setup(char *str)
 {
-        return line_setup(serial_lines, ARRAY_SIZE(serial_lines), str);
+        char *error;
+        int ret;
+
+        ret = line_setup(serial_lines, ARRAY_SIZE(serial_lines), str, &error);
+        if(ret < 0)
+                printk(KERN_ERR "Failed to set up serial line with "
+                       "configuration string \"%s\" : %s\n", str, error);
+
+        return 1;
 }
 
 __setup("ssl", ssl_chan_setup);