lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

orinoco: encapsulate driver locking

Browse Source 
Local bus and USB drivers will need to do locking differently.

The original orinoco_usb patches had a boolean variable controlling
whether spin_lock_bh was used, or irq based locking. This version
provides wrappers for the lock functions and the drivers specify the
functions pointers needed.

This will introduce a performance penalty, but I'm not expecting it to
be noticable.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Kilroy
2010-05-01 14:05:40 +01:00
committed by John W. Linville
parent 593ef09c9e
commit bcad6e80f3
7 changed files with 60 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/orinoco/spectrum_cs.c
View File

@ -405,9 +405,9 @@ spectrum_cs_release(struct pcmcia_device *link)
/* We're committed to taking the device away now, so mark the
* hardware as unavailable */
spin_lock_irqsave(&priv->lock, flags);
priv->hw.ops->lock_irqsave(&priv->lock, &flags);
priv->hw_unavailable++;
spin_unlock_irqrestore(&priv->lock, flags);
priv->hw.ops->unlock_irqrestore(&priv->lock, &flags);
pcmcia_disable_device(link);
if (priv->hw.iobase)