now that we are monitoring the return value from attach, make the
required changes to return proper value from its attach function.

Signed-off-by: Sudip Mukherjee <su...@vectorindia.org>
---
 drivers/spi/spi-butterfly.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-butterfly.c b/drivers/spi/spi-butterfly.c
index 9a95862..7df16c8 100644
--- a/drivers/spi/spi-butterfly.c
+++ b/drivers/spi/spi-butterfly.c
@@ -190,7 +190,7 @@ static struct flash_platform_data flash = {
 /* REVISIT remove this ugly global and its "only one" limitation */
 static struct butterfly *butterfly;
 
-static void butterfly_attach(struct parport *p)
+static int butterfly_attach(struct parport *p)
 {
        struct pardevice        *pd;
        int                     status;
@@ -199,7 +199,7 @@ static void butterfly_attach(struct parport *p)
        struct device           *dev = p->physport->dev;
 
        if (butterfly || !dev)
-               return;
+               return -ENODEV;
 
        /* REVISIT:  this just _assumes_ a butterfly is there ... no probe,
         * and no way to be selective about what it binds to.
@@ -287,7 +287,7 @@ static void butterfly_attach(struct parport *p)
 
        pr_info("%s: AVR Butterfly\n", p->name);
        butterfly = pp;
-       return;
+       return 0;
 
 clean2:
        /* turn off VCC */
@@ -300,6 +300,7 @@ clean0:
        (void) spi_master_put(pp->bitbang.master);
 done:
        pr_debug("%s: butterfly probe, fail %d\n", p->name, status);
+       return status;
 }
 
 static void butterfly_detach(struct parport *p)
-- 
1.8.1.2

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