linux-kernel - [PATCH 2/3] usb: gadget: f_hid: use free_ep

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 23 Aug 2016 18:24:50 +0100
From:   "Felipe F. Tonello" <eu@...ipetonello.com>
To:     linux-usb@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Felipe Balbi <balbi@...nel.org>
Subject: [PATCH 2/3] usb: gadget: f_hid: use free_ep_req()

We should always use free_ep_req() when allocating requests with
alloc_ep_req().

Signed-off-by: Felipe F. Tonello <eu@...ipetonello.com>
---
 drivers/usb/gadget/function/f_hid.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
index fa807ce7fc0e..aa1c19946d10 100644
--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -677,11 +677,8 @@ fail_free_descs:
 	usb_free_all_descriptors(f);
 fail:
 	ERROR(f->config->cdev, "hidg_bind FAILED\n");
-	if (hidg->req != NULL) {
-		kfree(hidg->req->buf);
-		if (hidg->in_ep != NULL)
-			usb_ep_free_request(hidg->in_ep, hidg->req);
-	}
+	if (hidg->req != NULL)
+		free_ep_req(hidg->in_ep, hidg->req);
 
 	return status;
 }
@@ -920,8 +917,7 @@ static void hidg_unbind(struct usb_configuration *c, struct usb_function *f)
 
 	/* disable/free request and end point */
 	usb_ep_disable(hidg->in_ep);
-	kfree(hidg->req->buf);
-	usb_ep_free_request(hidg->in_ep, hidg->req);
+	free_ep_req(hidg->in_ep, hidg->req);
 
 	usb_free_all_descriptors(f);
 }
-- 
2.9.3