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authorThomas Gleixner <tglx@linutronix.de>2013-07-04 23:11:22 +0200
committerThomas Gleixner <tglx@linutronix.de>2013-07-04 23:11:22 +0200
commit2b0f89317e99735bbf32eaede81f707f98ab1b5e (patch)
tree16daa236e21876b11f1c0b9256cd4046aadba020 /drivers/usb/dwc3/gadget.c
parenttick: Sanitize broadcast control logic (diff)
parentposix-cpu-timers: don't account cpu timer after stopped thread runtime accoun... (diff)
downloadlinux-2b0f89317e99735bbf32eaede81f707f98ab1b5e.tar.xz
linux-2b0f89317e99735bbf32eaede81f707f98ab1b5e.zip
Merge branch 'timers/posix-cpu-timers-for-tglx' of
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into timers/core Frederic sayed: "Most of these patches have been hanging around for several month now, in -mmotm for a significant chunk. They already missed a few releases." Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
-rw-r--r--drivers/usb/dwc3/gadget.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2b6e7e001207..b5e5b35df49c 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1706,11 +1706,19 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc)
dep = dwc->eps[epnum];
if (!dep)
continue;
-
- dwc3_free_trb_pool(dep);
-
- if (epnum != 0 && epnum != 1)
+ /*
+ * Physical endpoints 0 and 1 are special; they form the
+ * bi-directional USB endpoint 0.
+ *
+ * For those two physical endpoints, we don't allocate a TRB
+ * pool nor do we add them the endpoints list. Due to that, we
+ * shouldn't do these two operations otherwise we would end up
+ * with all sorts of bugs when removing dwc3.ko.
+ */
+ if (epnum != 0 && epnum != 1) {
+ dwc3_free_trb_pool(dep);
list_del(&dep->endpoint.ep_list);
+ }
kfree(dep);
}