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authorPeter Oh <poh@broadcom.com>2013-09-17 01:21:14 +0400
committerFelipe Balbi <balbi@ti.com>2013-09-17 20:07:14 +0400
commit7f2ccc8cb28cb3ec2f114486a3ccd57deae1560f (patch)
tree7c04fbc3dd7f4584935c3f8e5b3498b3813232b4 /drivers/usb/gadget
parent660479aad1cd9d862b640c9dd9b91858cbb712b2 (diff)
downloadlinux-7f2ccc8cb28cb3ec2f114486a3ccd57deae1560f.tar.xz
usb: gadget: f_mass_storage: reset endpoint driver data when disabled
Gadgets endpoint driver data is a criteria to judge that whether the endpoints are in use or not. When gadget gets assigned an endpoint from endpoint list, they check its driver data if the driver data is NULL. If the driver data is not NULL then they regard it as in use. Therefore all of gadgets should reset their endpoints driver data to NULL as they are disabled. Otherwise it causes a leak of endpoint resource. Signed-off-by: Peter Oh <poh@broadcom.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/f_mass_storage.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 313b835eedfd..a01d7d38c016 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2260,10 +2260,12 @@ reset:
/* Disable the endpoints */
if (fsg->bulk_in_enabled) {
usb_ep_disable(fsg->bulk_in);
+ fsg->bulk_in->driver_data = NULL;
fsg->bulk_in_enabled = 0;
}
if (fsg->bulk_out_enabled) {
usb_ep_disable(fsg->bulk_out);
+ fsg->bulk_out->driver_data = NULL;
fsg->bulk_out_enabled = 0;
}