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From: Ladislav Michl <ladis@linux-mips.org>
To: linux-usb@vger.kernel.org, linux-serial@vger.kernel.org
Cc: "Felipe Balbi" <balbi@kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Subject: [PATCH v2 5/5] usb: gadget: u_serial: Use bool for req_busy
Date: Sat, 13 Jul 2019 23:12:33 +0200
Message-ID: <20190713211233.GF25753@lenoch> (raw)
In-Reply-To: <20190713210853.GA25753@lenoch>

Let's make code more consistent by using bool for req_busy
as it is done for similar variables in struct gs_port.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
---
 Changes:
 - v2: None

 drivers/usb/gadget/function/u_serial.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 2dd6e1211d4a..1b1359a168e7 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -89,7 +89,7 @@ struct gscons_info {
 	struct kfifo		con_buf;
 	/* protect the buf and busy flag */
 	spinlock_t		con_lock;
-	int			req_busy;
+	bool			req_busy;
 	struct usb_request	*console_req;
 };
 
@@ -918,7 +918,7 @@ static void gs_complete_out(struct usb_ep *ep, struct usb_request *req)
 	case 0:
 		/* normal completion */
 		spin_lock(&info->con_lock);
-		info->req_busy = 0;
+		info->req_busy = false;
 		spin_unlock(&info->con_lock);
 
 		wake_up_process(info->console_thread);
@@ -950,7 +950,6 @@ static int gs_console_connect(int port_num)
 		return -ENOMEM;
 	info->console_req->complete = gs_complete_out;
 	info->port = port;
-	info->req_busy = 0;
 	spin_unlock(&info->con_lock);
 	pr_vdebug("port[%d] console connect!\n", port_num);
 	return 0;
@@ -989,13 +988,13 @@ static int gs_console_thread(void *data)
 				size = len;
 
 			req->length = kfifo_out(&info->con_buf, req->buf, size);
-			info->req_busy = 1;
+			info->req_busy = true;
 
 			spin_unlock_irq(&info->con_lock);
 			status = usb_ep_queue(ep, req, GFP_ATOMIC);
 			spin_lock_irq(&info->con_lock);
 			if (status < 0)
-				info->req_busy = 0;
+				info->req_busy = false;
 		} else {
 sched:
 			spin_unlock_irq(&info->con_lock);
@@ -1019,7 +1018,7 @@ static int gs_console_setup(struct console *co, char *options)
 
 	info->port = NULL;
 	info->console_req = NULL;
-	info->req_busy = 0;
+	info->req_busy = false;
 
 	status = kfifo_alloc(&info->con_buf, GS_CONSOLE_BUF_SIZE, GFP_KERNEL);
 	if (status) {
-- 
2.22.0


  parent reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-13 21:08 [PATCH v2 0/5] usb: gadget: u_serial: Fix and cleanup Ladislav Michl
2019-07-13 21:10 ` [PATCH v2 1/5] usb: gadget: u_serial: Fix console_req complete event race Ladislav Michl
2019-07-13 21:10 ` [PATCH v2 2/5] usb: gadget: u_serial: Remove console specific alloc/free req functions Ladislav Michl
2019-07-13 21:11 ` [PATCH v2 3/5] usb: gadget: u_serial: Fix console_req access race Ladislav Michl
2019-07-13 21:11 ` [PATCH v2 4/5] usb: gadget: u_serial: Fix starving write Ladislav Michl
2019-07-13 21:12 ` Ladislav Michl [this message]
2019-07-14 10:04 ` [PATCH v2 0/5] usb: gadget: u_serial: Fix and cleanup Michał Mirosław
2019-07-14 11:37   ` Michał Mirosław
2019-07-14 13:22     ` Ladislav Michl
2019-07-15 10:40   ` Ladislav Michl

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