1 files changed, 17 insertions, 2 deletions

diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 0f59736db329..2bb4c4f5dec4 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -602,11 +602,26 @@ int line_get_config(char *name, struct line *lines, unsigned int num, char *str,
         return n;
 }
 
-int line_remove(struct line *lines, unsigned int num, char *str)
+int line_id(char **str, int *start_out, int *end_out)
+{
+        char *end;
+        int n;
+
+        n = simple_strtoul(*str, &end, 0);
+        if((*end != '\0') || (end == *str))
+                return -1;
+
+        *str = end;
+        *start_out = n;
+        *end_out = n;
+        return n;
+}
+
+int line_remove(struct line *lines, unsigned int num, int n)
 {
         char config[sizeof("conxxxx=none\0")];
 
-        sprintf(config, "%s=none", str);
+        sprintf(config, "%d=none", n);
         return !line_setup(lines, num, config, 0);
 }