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| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2024-12-11 00:33:44 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-24 08:56:07 +0100 |
| commit | 1d5d4e11536ed7154ba08799a64eca9802d32d0f (patch) | |
| tree | 2de7b48e1f8633586721ea00be1156a7243cfc56 /drivers/usb/gadget | |
| parent | 472615215398b7e47baca6422cab5a7106cddecb (diff) | |
| download | linux-stable-1d5d4e11536ed7154ba08799a64eca9802d32d0f.tar.gz linux-stable-1d5d4e11536ed7154ba08799a64eca9802d32d0f.tar.bz2 linux-stable-1d5d4e11536ed7154ba08799a64eca9802d32d0f.zip | |
usb: gadget: f_tcm: Send sense on cancelled transfer
If the transfer is cancelled due to a disconnect or driver tear down
(error code -ESHUTDOWN), then just free the command. However, if it got
cancelled due to other reasons, then send a sense CHECK CONDITION status
with TCM_CHECK_CONDITION_ABORT_CMD status to host notifying the delivery
failure. Note that this is separate from TASK MANAGEMENT function abort
task command, which will require a separate response IU.
See UAS-r04 section 8.
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/f2ae293c1fc39df4d242a2f724584bf4ec105ece.1733876548.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/function/f_tcm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index da594767ba98..c6bdd6023588 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -948,7 +948,8 @@ static void usbg_data_write_cmpl(struct usb_ep *ep, struct usb_request *req) cleanup: target_put_sess_cmd(se_cmd); - transport_generic_free_cmd(&cmd->se_cmd, 0); + transport_send_check_condition_and_sense(se_cmd, + TCM_CHECK_CONDITION_ABORT_CMD, 0); } static int usbg_prepare_w_request(struct usbg_cmd *cmd, struct usb_request *req) |