diff options
author | Tomas Winkler <tomas.winkler@intel.com> | 2011-11-09 08:26:35 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-24 19:12:53 -0200 |
commit | 101dca425da49edb3093000d72490216fa322911 (patch) | |
tree | d2cfbb4d549ca851a208a22dbff3d7f71e6c2c57 /drivers/staging | |
parent | 7dbb3920252dcb3662e934b134ccb5129f62cbad (diff) | |
download | linux-stable-101dca425da49edb3093000d72490216fa322911.tar.gz linux-stable-101dca425da49edb3093000d72490216fa322911.tar.bz2 linux-stable-101dca425da49edb3093000d72490216fa322911.zip |
[media] easycap: streamline the code
change statements of types
if (err)
return err
else
do something
and
if (ok)
do something
else
return err
into
if (err)
return err
do something
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/media/easycap/easycap_ioctl.c | 37 | ||||
-rw-r--r-- | drivers/staging/media/easycap/easycap_low.c | 26 | ||||
-rw-r--r-- | drivers/staging/media/easycap/easycap_main.c | 127 |
3 files changed, 88 insertions, 102 deletions
diff --git a/drivers/staging/media/easycap/easycap_ioctl.c b/drivers/staging/media/easycap/easycap_ioctl.c index acb9c842ca33..ccab5cace240 100644 --- a/drivers/staging/media/easycap/easycap_ioctl.c +++ b/drivers/staging/media/easycap/easycap_ioctl.c @@ -666,16 +666,15 @@ int adjust_brightness(struct easycap *peasycap, int value) peasycap->inputset[peasycap->input].brightness_ok = 1; } else JOM(8, "%i=peasycap->input\n", peasycap->input); + mood = 0x00FF & (unsigned int)peasycap->brightness; - if (!write_saa(peasycap->pusb_device, 0x0A, mood)) { - SAM("adjusting brightness to 0x%02X\n", mood); - return 0; - } else { + if (write_saa(peasycap->pusb_device, 0x0A, mood)) { SAM("WARNING: failed to adjust brightness " "to 0x%02X\n", mood); return -ENOENT; } - break; + SAM("adjusting brightness to 0x%02X\n", mood); + return 0; } i1++; } @@ -725,15 +724,13 @@ int adjust_contrast(struct easycap *peasycap, int value) JOM(8, "%i=peasycap->input\n", peasycap->input); mood = 0x00FF & (unsigned int) (peasycap->contrast - 128); - if (!write_saa(peasycap->pusb_device, 0x0B, mood)) { - SAM("adjusting contrast to 0x%02X\n", mood); - return 0; - } else { + if (write_saa(peasycap->pusb_device, 0x0B, mood)) { SAM("WARNING: failed to adjust contrast to " "0x%02X\n", mood); return -ENOENT; } - break; + SAM("adjusting contrast to 0x%02X\n", mood); + return 0; } i1++; } @@ -783,14 +780,13 @@ int adjust_saturation(struct easycap *peasycap, int value) } else JOM(8, "%i=peasycap->input\n", peasycap->input); mood = 0x00FF & (unsigned int) (peasycap->saturation - 128); - if (!write_saa(peasycap->pusb_device, 0x0C, mood)) { - SAM("adjusting saturation to 0x%02X\n", mood); - return 0; - } else { + if (write_saa(peasycap->pusb_device, 0x0C, mood)) { SAM("WARNING: failed to adjust saturation to " "0x%02X\n", mood); return -ENOENT; } + SAM("adjusting saturation to 0x%02X\n", mood); + return 0; break; } i1++; @@ -838,13 +834,12 @@ int adjust_hue(struct easycap *peasycap, int value) JOM(8, "%i=peasycap->input\n", peasycap->input); i2 = peasycap->hue - 128; mood = 0x00FF & ((int) i2); - if (!write_saa(peasycap->pusb_device, 0x0D, mood)) { - SAM("adjusting hue to 0x%02X\n", mood); - return 0; - } else { + if (write_saa(peasycap->pusb_device, 0x0D, mood)) { SAM("WARNING: failed to adjust hue to 0x%02X\n", mood); return -ENOENT; } + SAM("adjusting hue to 0x%02X\n", mood); + return 0; break; } i1++; @@ -885,14 +880,12 @@ static int adjust_volume(struct easycap *peasycap, int value) ((31 < peasycap->volume) ? 31 : (s8) peasycap->volume); if (!audio_gainset(peasycap->pusb_device, mood)) { - SAM("adjusting volume to 0x%02X\n", mood); - return 0; - } else { SAM("WARNING: failed to adjust volume to " "0x%2X\n", mood); return -ENOENT; } - break; + SAM("adjusting volume to 0x%02X\n", mood); + return 0; } i1++; } diff --git a/drivers/staging/media/easycap/easycap_low.c b/drivers/staging/media/easycap/easycap_low.c index ef37de88a6b5..212830b177cc 100644 --- a/drivers/staging/media/easycap/easycap_low.c +++ b/drivers/staging/media/easycap/easycap_low.c @@ -514,22 +514,22 @@ int ready_saa(struct usb_device *p) msleep(marktime); j++; } + if (max == j) return -1; + + if (0x20 & rc) { + rate = 2; + JOT(8, "hardware detects 60 Hz\n"); + } else { + rate = 0; + JOT(8, "hardware detects 50 Hz\n"); + } + if (0x80 & rc) + JOT(8, "hardware detects interlacing\n"); else { - if (0x20 & rc) { - rate = 2; - JOT(8, "hardware detects 60 Hz\n"); - } else { - rate = 0; - JOT(8, "hardware detects 50 Hz\n"); - } - if (0x80 & rc) - JOT(8, "hardware detects interlacing\n"); - else { - rate++; - JOT(8, "hardware detects no interlacing\n"); - } + rate++; + JOT(8, "hardware detects no interlacing\n"); } return 0; } diff --git a/drivers/staging/media/easycap/easycap_main.c b/drivers/staging/media/easycap/easycap_main.c index 94fd1167d4a8..044c762f337a 100644 --- a/drivers/staging/media/easycap/easycap_main.c +++ b/drivers/staging/media/easycap/easycap_main.c @@ -165,14 +165,13 @@ static int easycap_open(struct inode *inode, struct file *file) if (!peasycap->pusb_device) { SAM("ERROR: peasycap->pusb_device is NULL\n"); return -EFAULT; - } else { - JOM(16, "peasycap->pusb_device=%p\n", peasycap->pusb_device); } + + JOM(16, "peasycap->pusb_device=%p\n", peasycap->pusb_device); + file->private_data = peasycap; rc = wakeup_device(peasycap->pusb_device); - if (0 == rc) - JOM(8, "wakeup_device() OK\n"); - else { + if (rc) { SAM("ERROR: wakeup_device() rc = %i\n", rc); if (-ENODEV == rc) SAM("ERROR: wakeup_device() returned -ENODEV\n"); @@ -180,6 +179,7 @@ static int easycap_open(struct inode *inode, struct file *file) SAM("ERROR: wakeup_device() rc = %i\n", rc); return rc; } + JOM(8, "wakeup_device() OK\n"); peasycap->input = 0; rc = reset(peasycap); if (rc) { @@ -987,11 +987,11 @@ static unsigned int easycap_poll(struct file *file, poll_table *wait) rc = easycap_dqbuf(peasycap, 0); peasycap->polled = 1; mutex_unlock(&easycapdc60_dongle[kd].mutex_video); - if (0 == rc) - return POLLIN | POLLRDNORM; - else + if (rc) return POLLERR; - } + + return POLLIN | POLLRDNORM; +} /*****************************************************************************/ /*---------------------------------------------------------------------------*/ /* @@ -2920,6 +2920,7 @@ static int easycap_usb_probe(struct usb_interface *intf, SAY("ERROR: usb_host_interface not found\n"); return -EFAULT; } + interface = &alt->desc; if (!interface) { SAY("ERROR: intf_descriptor is NULL\n"); @@ -2979,38 +2980,30 @@ static int easycap_usb_probe(struct usb_interface *intf, if (mutex_lock_interruptible(&mutex_dongle)) { SAY("ERROR: cannot down mutex_dongle\n"); return -ERESTARTSYS; - } else { -/*---------------------------------------------------------------------------*/ - /* - * FOR INTERFACES 1 AND 2 THE POINTER peasycap WILL NEED TO - * TO BE THE SAME AS THAT ALLOCATED NOW FOR INTERFACE 0. - * - * NORMALLY ndong WILL NOT HAVE CHANGED SINCE INTERFACE 0 WAS - * PROBED, BUT THIS MAY NOT BE THE CASE IF, FOR EXAMPLE, TWO - * EASYCAPs ARE PLUGGED IN SIMULTANEOUSLY. - */ -/*---------------------------------------------------------------------------*/ - for (ndong = 0; ndong < DONGLE_MANY; ndong++) { - if ((!easycapdc60_dongle[ndong].peasycap) && - (!mutex_is_locked(&easycapdc60_dongle - [ndong].mutex_video)) && - (!mutex_is_locked(&easycapdc60_dongle - [ndong].mutex_audio))) { - easycapdc60_dongle[ndong].peasycap = peasycap; - peasycap->isdongle = ndong; - JOM(8, "intf[%i]: peasycap-->easycap" - "_dongle[%i].peasycap\n", - bInterfaceNumber, ndong); - break; - } - } - if (DONGLE_MANY <= ndong) { - SAM("ERROR: too many dongles\n"); - mutex_unlock(&mutex_dongle); - return -ENOMEM; + } + + for (ndong = 0; ndong < DONGLE_MANY; ndong++) { + if ((!easycapdc60_dongle[ndong].peasycap) && + (!mutex_is_locked(&easycapdc60_dongle + [ndong].mutex_video)) && + (!mutex_is_locked(&easycapdc60_dongle + [ndong].mutex_audio))) { + easycapdc60_dongle[ndong].peasycap = peasycap; + peasycap->isdongle = ndong; + JOM(8, "intf[%i]: peasycap-->easycap" + "_dongle[%i].peasycap\n", + bInterfaceNumber, ndong); + break; } + } + + if (DONGLE_MANY <= ndong) { + SAM("ERROR: too many dongles\n"); mutex_unlock(&mutex_dongle); + return -ENOMEM; } + mutex_unlock(&mutex_dongle); + peasycap->allocation_video_struct = sizeof(struct easycap); peasycap->allocation_video_page = 0; peasycap->allocation_video_urb = 0; @@ -3393,11 +3386,10 @@ static int easycap_usb_probe(struct usb_interface *intf, if (!isokalt) { SAM("ERROR: no viable video_altsetting_on\n"); return -ENOENT; - } else { - peasycap->video_altsetting_on = okalt[isokalt - 1]; - JOM(4, "%i=video_altsetting_on <====\n", - peasycap->video_altsetting_on); } + peasycap->video_altsetting_on = okalt[isokalt - 1]; + JOM(4, "%i=video_altsetting_on <====\n", + peasycap->video_altsetting_on); /*---------------------------------------------------------------------------*/ /* * DECIDE THE VIDEO STREAMING PARAMETERS @@ -3483,8 +3475,9 @@ static int easycap_usb_probe(struct usb_interface *intf, SAM("ERROR: Could not allocate frame " "buffer %i page %i\n", k, m); return -ENOMEM; - } else - peasycap->allocation_video_page += 1; + } + + peasycap->allocation_video_page += 1; peasycap->frame_buffer[k][m].pgo = pbuf; } peasycap->frame_buffer[k][m].pto = @@ -3513,11 +3506,11 @@ static int easycap_usb_probe(struct usb_interface *intf, SAM("ERROR: Could not allocate field" " buffer %i page %i\n", k, m); return -ENOMEM; - } - else - peasycap->allocation_video_page += 1; - peasycap->field_buffer[k][m].pgo = pbuf; } + + peasycap->allocation_video_page += 1; + peasycap->field_buffer[k][m].pgo = pbuf; + } peasycap->field_buffer[k][m].pto = peasycap->field_buffer[k][m].pgo; } @@ -3541,9 +3534,9 @@ static int easycap_usb_probe(struct usb_interface *intf, SAM("ERROR: Could not allocate isoc video buffer " "%i\n", k); return -ENOMEM; - } else - peasycap->allocation_video_page += - BIT(VIDEO_ISOC_ORDER); + } + peasycap->allocation_video_page += + BIT(VIDEO_ISOC_ORDER); peasycap->video_isoc_buffer[k].pgo = pbuf; peasycap->video_isoc_buffer[k].pto = @@ -3572,15 +3565,17 @@ static int easycap_usb_probe(struct usb_interface *intf, SAM("ERROR: usb_alloc_urb returned NULL for buffer " "%i\n", k); return -ENOMEM; - } else - peasycap->allocation_video_urb += 1; + } + + peasycap->allocation_video_urb += 1; /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ pdata_urb = kzalloc(sizeof(struct data_urb), GFP_KERNEL); if (!pdata_urb) { SAM("ERROR: Could not allocate struct data_urb.\n"); return -ENOMEM; - } else - peasycap->allocation_video_struct += + } + + peasycap->allocation_video_struct += sizeof(struct data_urb); pdata_urb->purb = purb; @@ -3697,13 +3692,12 @@ static int easycap_usb_probe(struct usb_interface *intf, err("Not able to register with videodev"); videodev_release(&(peasycap->video_device)); return -ENODEV; - } else { - (peasycap->registered_video)++; - SAM("registered with videodev: %i=minor\n", - peasycap->video_device.minor); - peasycap->minor = peasycap->video_device.minor; } -/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ + + peasycap->registered_video++; + SAM("registered with videodev: %i=minor\n", + peasycap->video_device.minor); + peasycap->minor = peasycap->video_device.minor; break; } @@ -3737,11 +3731,10 @@ static int easycap_usb_probe(struct usb_interface *intf, if (!isokalt) { SAM("ERROR: no viable audio_altsetting_on\n"); return -ENOENT; - } else { - peasycap->audio_altsetting_on = okalt[isokalt - 1]; - JOM(4, "%i=audio_altsetting_on <====\n", - peasycap->audio_altsetting_on); } + peasycap->audio_altsetting_on = okalt[isokalt - 1]; + JOM(4, "%i=audio_altsetting_on <====\n", + peasycap->audio_altsetting_on); peasycap->audio_endpointnumber = okepn[isokalt - 1]; JOM(4, "%i=audio_endpointnumber\n", peasycap->audio_endpointnumber); @@ -3850,8 +3843,8 @@ static int easycap_usb_probe(struct usb_interface *intf, SAM("ERROR: Could not allocate isoc audio buffer " "%i\n", k); return -ENOMEM; - } else - peasycap->allocation_audio_page += + } + peasycap->allocation_audio_page += BIT(AUDIO_ISOC_ORDER); peasycap->audio_isoc_buffer[k].pgo = pbuf; |