[WATCHDOG] improve machzwd detection

On a machine with no machzwd, loading the module prints out..

machzwd: MachZ ZF-Logic Watchdog driver initializing.
0xffff
machzwd: Watchdog using action = RESET

- the 0xffff printk is unnecessary
- 0xffff seems to be 'hardware not present'
- fix CodingStyle. (This driver could use some more work here)

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/char/watchdog/machzwd.c b/drivers/char/watchdog/machzwd.c
index ed2b6e1e3cec..276577d08fba 100644
--- a/drivers/char/watchdog/machzwd.c
+++ b/drivers/char/watchdog/machzwd.c
@@ -426,8 +426,7 @@ static int __init zf_init(void)
         printk(KERN_INFO PFX ": MachZ ZF-Logic Watchdog driver initializing.\n");
 
         ret = zf_get_ZFL_version();
-        printk("%#x\n", ret);
-        if((!ret) || (ret != 0xffff)){
+        if ((!ret) || (ret == 0xffff)) {
                 printk(KERN_WARNING PFX ": no ZF-Logic found\n");
                 return -ENODEV;
         }