ipmi:ssif: Only unregister the platform driver if it was registered

Otherwise you will get an error when the driver is removed if you
set trydmi=0.

Signed-off-by: Corey Minyard <cminyard@mvista.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index aaccb0ff1ea6..be329f791c95 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -2111,7 +2111,8 @@ static void cleanup_ipmi_ssif(void)
 
         kfree(ssif_i2c_driver.address_list);
 
-        platform_driver_unregister(&ipmi_driver);
+        if (ssif_trydmi)
+                platform_driver_unregister(&ipmi_driver);
 
         free_ssif_clients();
 }