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| author | David Brownell <david-b@pacbell.net> | 2006-01-20 14:38:49 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-31 17:23:44 -0800 |
| commit | 69396dcfa3c50a6b8d2caaccf5d1496ecd5594be (patch) | |
| tree | 8ff771e3d9cfdd91d19add3369234ac8f1081438 /drivers/usb/gadget/zero.c | |
| parent | c02c4bb2058587d3c012ec08268fd93fdc654ae7 (diff) | |
| download | lwn-69396dcfa3c50a6b8d2caaccf5d1496ecd5594be.tar.gz lwn-69396dcfa3c50a6b8d2caaccf5d1496ecd5594be.zip | |
[PATCH] USB: gadget zero and dma-coherent buffers
This makes sure that the correct length is reported when freeing
a dma-coherent buffer; some platforms complain if that's wrong.
It also makes two parameters readonly in sysfs, as they're not
safe to change while tests are running.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/zero.c')
| -rw-r--r-- | drivers/usb/gadget/zero.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 2fc110d3ad5a..ae7a1c0f5748 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -165,8 +165,8 @@ static unsigned buflen = 4096; static unsigned qlen = 32; static unsigned pattern = 0; -module_param (buflen, uint, S_IRUGO|S_IWUSR); -module_param (qlen, uint, S_IRUGO|S_IWUSR); +module_param (buflen, uint, S_IRUGO); +module_param (qlen, uint, S_IRUGO); module_param (pattern, uint, S_IRUGO|S_IWUSR); /* @@ -1127,8 +1127,10 @@ zero_unbind (struct usb_gadget *gadget) DBG (dev, "unbind\n"); /* we've already been disconnected ... no i/o is active */ - if (dev->req) + if (dev->req) { + dev->req->length = USB_BUFSIZ; free_ep_req (gadget->ep0, dev->req); + } del_timer_sync (&dev->resume); kfree (dev); set_gadget_data (gadget, NULL); |