[patch 19/39] [PATCH] it87: Fix oops on removal

[Chris Wright]

-stable review patch.  If anyone has any objections, please let us know.
------------------

Fix an oops on it87 module removal when no supported hardware was
found.

Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
---

 drivers/hwmon/it87.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

--- linux-2.6.15.4.orig/drivers/hwmon/it87.c
+++ linux-2.6.15.4/drivers/hwmon/it87.c
@@ -1180,7 +1180,8 @@ static int __init sm_it87_init(void)
 
 static void __exit sm_it87_exit(void)
 {
-	i2c_isa_del_driver(&it87_isa_driver);
+	if (isa_address)
+		i2c_isa_del_driver(&it87_isa_driver);
 	i2c_del_driver(&it87_driver);
 }
 

--
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