[PATCH] ibmasm driver: fix race in command refcount logic
This patch fixes a race in the command reference counting logic by putting
spinlocks around kobject_put() in the command_put function.
- Also added debug messages.
- Changed a memcpy to memcpy_fromio since we are reading from io space.
Signed-off-by: Max Asbock <masbock@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/misc/ibmasm/r_heartbeat.c b/drivers/misc/ibmasm/r_heartbeat.c
index 93d9c1b..f8fdb2d 100644
--- a/drivers/misc/ibmasm/r_heartbeat.c
+++ b/drivers/misc/ibmasm/r_heartbeat.c
@@ -63,7 +63,7 @@
int times_failed = 0;
int result = 1;
- cmd = ibmasm_new_command(sizeof rhb_dot_cmd);
+ cmd = ibmasm_new_command(sp, sizeof rhb_dot_cmd);
if (!cmd)
return -ENOMEM;