summaryrefslogtreecommitdiffstats
path: root/drivers/usb/class/cdc-wdm.c
diff options
context:
space:
mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-08 13:39:59 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-08 13:39:59 +0200
commit5e13a0c5ec05d382b488a691dfb8af015b1dea1e (patch)
tree7a06dfa1f7661f8908193f2437b32452520221d3 /drivers/usb/class/cdc-wdm.c
parentb615b57a124a4af7b68196bc2fb8acc236041fa2 (diff)
parent4f256e8aa3eda15c11c3cec3ec5336e1fc579cbd (diff)
Merge remote-tracking branch 'airlied/drm-core-next' into drm-intel-next-queued
Backmerge of drm-next to resolve a few ugly conflicts and to get a few fixes from 3.4-rc6 (which drm-next has already merged). Note that this merge also restricts the stencil cache lra evict policy workaround to snb (as it should) - I had to frob the code anyway because the CM0_MASK_SHIFT define died in the masked bit cleanups. We need the backmerge to get Paulo Zanoni's infoframe regression fix for gm45 - further bugfixes from him touch the same area and would needlessly conflict. Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/usb/class/cdc-wdm.c')
-rw-r--r--drivers/usb/class/cdc-wdm.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index c6f6560d436..0bb2b3248da 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -157,8 +157,9 @@ static void wdm_out_callback(struct urb *urb)
spin_lock(&desc->iuspin);
desc->werr = urb->status;
spin_unlock(&desc->iuspin);
- clear_bit(WDM_IN_USE, &desc->flags);
kfree(desc->outbuf);
+ desc->outbuf = NULL;
+ clear_bit(WDM_IN_USE, &desc->flags);
wake_up(&desc->wait);
}
@@ -338,7 +339,7 @@ static ssize_t wdm_write
if (we < 0)
return -EIO;
- desc->outbuf = buf = kmalloc(count, GFP_KERNEL);
+ buf = kmalloc(count, GFP_KERNEL);
if (!buf) {
rv = -ENOMEM;
goto outnl;
@@ -406,10 +407,12 @@ static ssize_t wdm_write
req->wIndex = desc->inum;
req->wLength = cpu_to_le16(count);
set_bit(WDM_IN_USE, &desc->flags);
+ desc->outbuf = buf;
rv = usb_submit_urb(desc->command, GFP_KERNEL);
if (rv < 0) {
kfree(buf);
+ desc->outbuf = NULL;
clear_bit(WDM_IN_USE, &desc->flags);
dev_err(&desc->intf->dev, "Tx URB error: %d\n", rv);
} else {