[PATCH] I2O: bugfixes and compability enhancements

Changes:

 - Fixed sysfs bug where user and parent links where added to the I2O
   device itself
 - Fixed bug when calculating TID for the event handler and cleaned up the
   workflow of i2o_driver_dispatch()
 - Fixed oops when no I2O device could be found for an event delivered to
   Exec-OSM
 - Fixed initialization of spinlock in Exec-OSM
 - Fixed memory leak in i2o_cfg_passthru() and i2o_cfg_passthru()
 - Removed MTRR support
 - Added PCI ID of Promise SX6000 with firmware >= 1.20.x.x
 - Turn of caching for ioremapped memory of in_queue
 - Added initialization sequence for Promise controllers
 - Moved definition of u8 / u16 / u32 for raidutils before first use

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/message/i2o/exec-osm.c b/drivers/message/i2o/exec-osm.c
index 79c1cbfb8f44..1e28e886f1ca 100644
--- a/drivers/message/i2o/exec-osm.c
+++ b/drivers/message/i2o/exec-osm.c
@@ -204,12 +204,10 @@ static int i2o_msg_post_wait_complete(struct i2o_controller *c, u32 m,
                                       struct i2o_message __iomem *msg)
 {
         struct i2o_exec_wait *wait, *tmp;
-        static spinlock_t lock;
+        static spinlock_t lock = SPIN_LOCK_UNLOCKED;
         int rc = 1;
         u32 context;
 
-        spin_lock_init(&lock);
-
         context = readl(&msg->u.s.tcntxt);
 
         /*
@@ -381,8 +379,9 @@ static int i2o_exec_reply(struct i2o_controller *c, u32 m,
  */
 static void i2o_exec_event(struct i2o_event *evt)
 {
-        osm_info("Event received from device: %d\n",
-                 evt->i2o_dev->lct_data.tid);
+        if(likely(evt->i2o_dev))
+                osm_info("Event received from device: %d\n",
+                         evt->i2o_dev->lct_data.tid);
         kfree(evt);
 };