V4L/DVB (10455): radio-mr800: codingstyle cleanups
Cleanups of many if-check constructions.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 624e98b..6ffb727 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -375,13 +375,15 @@
struct v4l2_frequency *f)
{
struct amradio_device *radio = video_get_drvdata(video_devdata(file));
+ int retval;
/* safety check */
if (radio->removed)
return -EIO;
radio->curfreq = f->frequency;
- if (amradio_setfreq(radio, radio->curfreq) < 0)
+ retval = amradio_setfreq(radio, radio->curfreq);
+ if (retval < 0)
amradio_dev_warn(&radio->videodev->dev,
"set frequency failed\n");
return 0;
@@ -440,6 +442,7 @@
struct v4l2_control *ctrl)
{
struct amradio_device *radio = video_get_drvdata(video_devdata(file));
+ int retval;
/* safety check */
if (radio->removed)
@@ -448,13 +451,15 @@
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
if (ctrl->value) {
- if (amradio_stop(radio) < 0) {
+ retval = amradio_stop(radio);
+ if (retval < 0) {
amradio_dev_warn(&radio->videodev->dev,
"amradio_stop failed\n");
return -1;
}
} else {
- if (amradio_start(radio) < 0) {
+ retval = amradio_start(radio);
+ if (retval < 0) {
amradio_dev_warn(&radio->videodev->dev,
"amradio_start failed\n");
return -1;
@@ -505,20 +510,24 @@
static int usb_amradio_open(struct file *file)
{
struct amradio_device *radio = video_get_drvdata(video_devdata(file));
+ int retval;
lock_kernel();
radio->users = 1;
radio->muted = 1;
- if (amradio_start(radio) < 0) {
+ retval = amradio_start(radio);
+ if (retval < 0) {
amradio_dev_warn(&radio->videodev->dev,
"radio did not start up properly\n");
radio->users = 0;
unlock_kernel();
return -EIO;
}
- if (amradio_setfreq(radio, radio->curfreq) < 0)
+
+ retval = amradio_setfreq(radio, radio->curfreq);
+ if (retval < 0)
amradio_dev_warn(&radio->videodev->dev,
"set frequency failed\n");
@@ -551,8 +560,10 @@
static int usb_amradio_suspend(struct usb_interface *intf, pm_message_t message)
{
struct amradio_device *radio = usb_get_intfdata(intf);
+ int retval;
- if (amradio_stop(radio) < 0)
+ retval = amradio_stop(radio);
+ if (retval < 0)
dev_warn(&intf->dev, "amradio_stop failed\n");
dev_info(&intf->dev, "going into suspend..\n");
@@ -564,8 +575,10 @@
static int usb_amradio_resume(struct usb_interface *intf)
{
struct amradio_device *radio = usb_get_intfdata(intf);
+ int retval;
- if (amradio_start(radio) < 0)
+ retval = amradio_start(radio);
+ if (retval < 0)
dev_warn(&intf->dev, "amradio_start failed\n");
dev_info(&intf->dev, "coming out of suspend..\n");
@@ -616,16 +629,16 @@
.release = usb_amradio_device_release,
};
-/* check if the device is present and register with v4l and
-usb if it is */
+/* check if the device is present and register with v4l and usb if it is */
static int usb_amradio_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct amradio_device *radio;
+ int retval;
radio = kmalloc(sizeof(struct amradio_device), GFP_KERNEL);
- if (!(radio))
+ if (!radio)
return -ENOMEM;
radio->buffer = kmalloc(BUFFER_LENGTH, GFP_KERNEL);
@@ -654,7 +667,8 @@
mutex_init(&radio->lock);
video_set_drvdata(radio->videodev, radio);
- if (video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr)) {
+ retval = video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr);
+ if (retval < 0) {
dev_warn(&intf->dev, "could not register video device\n");
video_device_release(radio->videodev);
kfree(radio->buffer);