diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2006-08-30 11:35:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-27 11:58:56 -0700 |
| commit | 4d6cd48380c4d361cc8ec34359df22377d85d202 (patch) | |
| tree | 21f052fc743818d0c14c85505293f96b9274a94c /drivers/usb/mon/usb_mon.h | |
| parent | 1720058343fa43a1a25bfad9e62ea06e7e9743b6 (diff) | |
| download | blackbird-op-linux-4d6cd48380c4d361cc8ec34359df22377d85d202.tar.gz blackbird-op-linux-4d6cd48380c4d361cc8ec34359df22377d85d202.zip | |
usbmon: don't call mon_dmapeek if DMA isn't being used
This patch (as755b) fixes a bug in usbmon. Rather than assuming all
USB host controllers use DMA, the code will check the usb_bus data
structure. If DMA isn't used, we don't want to try peeking into a
non-existent DMA buffer!
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/mon/usb_mon.h')
| -rw-r--r-- | drivers/usb/mon/usb_mon.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h index 50efc8ee7c21..ab9d02d5df77 100644 --- a/drivers/usb/mon/usb_mon.h +++ b/drivers/usb/mon/usb_mon.h @@ -20,6 +20,7 @@ struct mon_bus { struct dentry *dent_s; /* Debugging file */ struct dentry *dent_t; /* Text interface file */ struct usb_bus *u_bus; + int uses_dma; /* Ref */ int nreaders; /* Under mon_lock AND mbus->lock */ |
