[PATCH] ata: fix platform_device_register_simple() error check

The return value of platform_device_register_simple() should be checked
by IS_ERR().

Cc: Jeff Garzik <jgarzik@pobox.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index c7d1738e4e69..e7bf9d89c8ee 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -698,8 +698,10 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl
                 goto fail_io;
 
         pdev = platform_device_register_simple(DRV_NAME, nr_legacy_host, NULL, 0);
-        if (pdev == NULL)
+        if (IS_ERR(pdev)) {
+                ret = PTR_ERR(pdev);
                 goto fail_dev;
+        }
 
         if (ht6560a & mask) {
                 ops = &ht6560a_port_ops;