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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-08-30 17:35:21 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-27 20:58:56 +0200 |
| commit | 4d6cd48380c4d361cc8ec34359df22377d85d202 (patch) | |
| tree | 21f052fc743818d0c14c85505293f96b9274a94c /drivers/usb/mon/mon_main.c | |
| parent | usbcore: trim down usb_bus structure (diff) | |
| download | linux-4d6cd48380c4d361cc8ec34359df22377d85d202.tar.xz 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/mon_main.c')
| -rw-r--r-- | drivers/usb/mon/mon_main.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index e0ed36cdfd8b..394bbf2f68d4 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c @@ -301,6 +301,7 @@ static void mon_bus_init(struct dentry *mondir, struct usb_bus *ubus) */ mbus->u_bus = ubus; ubus->mon_bus = mbus; + mbus->uses_dma = ubus->uses_dma; rc = snprintf(name, NAMESZ, "%dt", ubus->busnum); if (rc <= 0 || rc >= NAMESZ) |