[S390] Add MODALIAS= to the uevent for the ap bus.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 79d89c36891..6a54334ffe0 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -431,7 +431,15 @@ static int ap_uevent (struct device *dev, char **envp, int num_envp,
                            ap_dev->device_type);
         if (buffer_size - length <= 0)
                 return -ENOMEM;
-        envp[1] = 0;
+        buffer += length;
+        buffer_size -= length;
+        /* Add MODALIAS= */
+        envp[1] = buffer;
+        length = scnprintf(buffer, buffer_size, "MODALIAS=ap:t%02X",
+                           ap_dev->device_type);
+        if (buffer_size - length <= 0)
+                return -ENOMEM;
+        envp[2] = NULL;
         return 0;
 }