[POWERPC] Fix modalias content in sysfs for macio devices

Currently the buf pointer is advanced too far during each iteration.
Also terminate the string with a newline.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c
index 8566bdfdd4b8..0a5647fb8569 100644
--- a/drivers/macintosh/macio_sysfs.c
+++ b/drivers/macintosh/macio_sysfs.c
@@ -53,12 +53,14 @@ static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
         buf += length;
         while (cplen > 0) {
                 int l;
-                length += sprintf (buf, "C%s", compat);
-                buf += length;
+                l = sprintf (buf, "C%s", compat);
+                length += l;
+                buf += l;
                 l = strlen (compat) + 1;
                 compat += l;
                 cplen -= l;
         }
+        length += sprintf(buf, "\n");
 
         return length;
 }