iscsi tools: fix null sysfs string handling

If a string is null we used to get <NULL>. We now get (null). This patch checks for both to support new and old kernels.
open-iscsi · f0b670c016c85c882bb0583eaef8ea2f7147d4af · Mike Christie committed Mar 24, 2010 · Mar 24, 2010 · f0b670c
1 parent a01fcc4
commit f0b670c016c85c882bb0583eaef8ea2f7147d4af
Unified Split

Showing with 2 additions and 1 deletion.

+2 −1 usr/sysfs.c
diff --git a/usr/sysfs.c b/usr/sysfs.c
@@ -566,7 +566,8 @@ char *sysfs_get_value(char *id, char *subsys, char *param)
 		return NULL;
 	}
 
-	if (!strncmp(sysfs_value, "<NULL>", 6))
+	if (!strncmp(sysfs_value, "<NULL>", 6) ||
+	    !strncmp(sysfs_value, "(null)", 6))
 		return NULL;
 
 	return sysfs_value;