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[PATCH] I2O: Bugfixes to get I2O working again

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From: Markus Lidel <Markus.Lidel@shadowconnect.com>

- Fixed locking of struct i2o_exec_wait in Executive-OSM

- Removed LCT Notify in i2o_exec_probe() which caused freeing memory and
  accessing freed memory during first enumeration of I2O devices

- Added missing locking in i2o_exec_lct_notify()

- removed put_device() of I2O controller in i2o_iop_remove() which caused
  the controller structure get freed to early

- Fixed size of mempool in i2o_iop_alloc()

- Fixed access to freed memory in i2o_msg_get()

See http://bugzilla.kernel.org/show_bug.cgi?id=6561

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Markus Lidel
2006-06-10 09:54:14 -07:00
committed by Linus Torvalds
parent a913f50706
commit 57a62fed87
3 changed files with 42 additions and 39 deletions
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5
include/linux/i2o.h
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@@ -1114,8 +1114,11 @@ static inline struct i2o_message *i2o_msg_get(struct i2o_controller *c)
mmsg->mfa = readl(c->in_port);
if (unlikely(mmsg->mfa >= c->in_queue.len)) {
u32 mfa = mmsg->mfa;
mempool_free(mmsg, c->in_msg.mempool);
if(mmsg->mfa == I2O_QUEUE_EMPTY)
if (mfa == I2O_QUEUE_EMPTY)
return ERR_PTR(-EBUSY);
return ERR_PTR(-EFAULT);
}