diff options
| author | Rohith Seelaboyina <rseelaboyina@nvidia.com> | 2014-01-28 11:59:35 +0530 |
|---|---|---|
| committer | Rohith Seelaboyina <rseelaboyina@nvidia.com> | 2014-02-09 20:56:59 -0800 |
| commit | a30ec742c59178ec94be7fe7f9ac2b0149abff88 (patch) | |
| tree | 423ee45d03f96cd01488aa5f4f77bae9a208708c /drivers/usb/gadget | |
| parent | 35f21ec543e53a43bf3a90b4f26915eeec692a0c (diff) | |
usb: gadget: tegra: check ep->desc before access
This changes adds condition to check ep->desc
before accessing its contents. ep->desc seems to
get Null on releasing the spin_lock.
Bug 1401730
Change-Id: I48b4c880ced0cd131bd45840839e6635fc1a219c
Signed-off-by: Rohith Seelaboyina <rseelaboyina@nvidia.com>
Reviewed-on: http://git-master/r/362366
(cherry picked from commit 4c18848a52973987a691a871c127e54d697c60dc)
Reviewed-on: http://git-master/r/362368
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/tegra_udc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/tegra_udc.c b/drivers/usb/gadget/tegra_udc.c index 90108ce4ab46..fbc8c3f8b8c5 100644 --- a/drivers/usb/gadget/tegra_udc.c +++ b/drivers/usb/gadget/tegra_udc.c @@ -1144,7 +1144,7 @@ static int tegra_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) /* Enable EP */ out: /* Touch the registers if cable is connected and phy is on */ - if (udc->vbus_active) { + if (udc->vbus_active && ep->desc) { epctrl = udc_readl(udc, EP_CONTROL_REG_OFFSET + (ep_num * 4)); if (ep_is_in(ep)) epctrl |= EPCTRL_TX_ENABLE; |