From: Andy Walls <awalls@md.metrocast.net>
To: linux-media@vger.kernel.org
Cc: Kenney Phillisjr <kphillisjr@gmail.com>,
Steven Toth <stoth@kernellabs.com>,
Jean Delvare <khali@linux-fr.org>
Subject: [PATCH 03/17] cx23885: i2c_wait_done returns 0 or 1, don't check for < 0 return value
Date: Mon, 19 Jul 2010 21:10:04 -0400 [thread overview]
Message-ID: <1279588204.28153.5.camel@localhost> (raw)
In-Reply-To: <cover.1279586511.git.awalls@md.metrocast.net>
From: Jean Delvare <khali@linux-fr.org>
Function i2c_wait_done() never returns negative values, so there is no
point in checking for them.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
---
drivers/media/video/cx23885/cx23885-i2c.c | 15 +++------------
1 files changed, 3 insertions(+), 12 deletions(-)
diff --git a/drivers/media/video/cx23885/cx23885-i2c.c b/drivers/media/video/cx23885/cx23885-i2c.c
index afb8d6f..1a39148 100644
--- a/drivers/media/video/cx23885/cx23885-i2c.c
+++ b/drivers/media/video/cx23885/cx23885-i2c.c
@@ -120,10 +120,7 @@ static int i2c_sendbytes(struct i2c_adapter *i2c_adap,
cx_write(bus->reg_wdata, wdata);
cx_write(bus->reg_ctrl, ctrl);
- retval = i2c_wait_done(i2c_adap);
- if (retval < 0)
- goto err;
- if (retval == 0)
+ if (!i2c_wait_done(i2c_adap))
goto eio;
if (!i2c_slave_did_ack(i2c_adap)) {
retval = -ENXIO;
@@ -149,10 +146,7 @@ static int i2c_sendbytes(struct i2c_adapter *i2c_adap,
cx_write(bus->reg_wdata, wdata);
cx_write(bus->reg_ctrl, ctrl);
- retval = i2c_wait_done(i2c_adap);
- if (retval < 0)
- goto err;
- if (retval == 0)
+ if (!i2c_wait_done(i2c_adap))
goto eio;
if (i2c_debug) {
dprintk(1, " %02x", msg->buf[cnt]);
@@ -213,10 +207,7 @@ static int i2c_readbytes(struct i2c_adapter *i2c_adap,
cx_write(bus->reg_addr, msg->addr << 25);
cx_write(bus->reg_ctrl, ctrl);
- retval = i2c_wait_done(i2c_adap);
- if (retval < 0)
- goto err;
- if (retval == 0)
+ if (!i2c_wait_done(i2c_adap))
goto eio;
if (cnt == 0 && !i2c_slave_did_ack(i2c_adap)) {
retval = -ENXIO;
--
1.7.1.1
next prev parent reply other threads:[~2010-07-20 1:16 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1279586511.git.awalls@md.metrocast.net>
2010-07-20 1:08 ` [PATCH 01/17] cx23885: Return -ENXIO on slave nack Andy Walls
2010-07-20 1:09 ` [PATCH 02/17] cx23885: Check for slave nack on all transactions Andy Walls
2010-07-20 1:10 ` Andy Walls [this message]
2010-07-20 1:11 ` [PATCH 04/17] cx25840: Make cx25840 i2c register read transactions atomic Andy Walls
2010-07-20 6:42 ` Jean Delvare
2010-07-20 12:35 ` Andy Walls
2010-07-20 12:46 ` Jean Delvare
2010-07-20 1:12 ` [PATCH 05/17] cx23885: Add correct detection of the HVR-1250 model 79501 Andy Walls
2010-07-20 1:12 ` [PATCH 06/17] cx23885: Add a VIDIOC_LOG_STATUS ioctl function for analog video devices Andy Walls
2010-07-20 1:16 ` [PATCH 07/17] v4l2_subdev: Add s_io_pin_config to v4l2_subdev_core_ops Andy Walls
2010-07-20 1:18 ` [PATCH 08/17] cx25840: Add s_io_pin_config core subdev ops for the CX2388[578] Andy Walls
2010-07-20 1:18 ` [PATCH 09/17] v4l2_subdev, cx23885: Differentiate IR carrier sense and I/O pin inversion Andy Walls
2010-07-20 1:19 ` [PATCH 10/17] cx23885: For CX23888 IR, configure the IO pin mux IR pins explcitly Andy Walls
2010-07-20 1:20 ` [PATCH 11/17] v4l2_subdev: Move interrupt_service_routine ptr to v4l2_subdev_core_ops Andy Walls
2010-07-20 1:22 ` [PATCH 12/17] cx25840: Add support for CX2388[57] A/V core integrated IR controllers Andy Walls
2010-07-20 1:22 ` [PATCH 13/17] cx23885: Add a v4l2_subdev group id for the CX2388[578] integrated AV core Andy Walls
2010-07-20 1:23 ` [PATCH 14/17] cx23885: Add preliminary IR Rx support for the HVR-1250 and TeVii S470 Andy Walls
2010-07-20 1:25 ` [PATCH 15/17] cx23885: Protect PCI interrupt mask manipulations with a spinlock Andy Walls
2010-07-20 1:25 ` [PATCH 16/17] cx23885: Move AV Core irq handling to a work handler Andy Walls
2010-07-20 1:26 ` [PATCH 17/17] cx23885: Require user to explicitly enable CX2388[57] IR via module param Andy Walls
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