Controlvm_respond now returns an error. Add error handling to the
bus_responder function.

Signed-off-by: David Kershner <david.kersh...@unisys.com>
Reported-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/staging/unisys/visorbus/visorchipset.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/unisys/visorbus/visorchipset.c 
b/drivers/staging/unisys/visorbus/visorchipset.c
index 034ff91..a10e41a 100644
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -638,18 +638,18 @@ enum crash_obj_type {
        return 0;
 }
 
-static void
+static int
 bus_responder(enum controlvm_id cmd_id,
              struct controlvm_message_header *pending_msg_hdr,
              int response)
 {
        if (!pending_msg_hdr)
-               return;         /* no controlvm response needed */
+               return -EIO;
 
        if (pending_msg_hdr->id != (u32)cmd_id)
-               return;
+               return -EINVAL;
 
-       controlvm_respond(pending_msg_hdr, response);
+       return controlvm_respond(pending_msg_hdr, response);
 }
 
 static void
-- 
1.9.1

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