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| author | Douglas Schilling Landgraf <dougsland@linuxtv.org> | 2008-09-08 08:27:20 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 13:37:00 +0200 |
| commit | f2a01a0027b29f682c3833d582e2827a4690f661 (patch) | |
| tree | b16a459c19b4861b991e039b4d859d60e5110f6c /drivers/media/video/em28xx/em28xx-video.c | |
| parent | V4L/DVB (8936): em28xx-cards: Add vendor/product id for EM2820_BOARD_PROLINK_... (diff) | |
| download | linux-f2a01a0027b29f682c3833d582e2827a4690f661.tar.xz linux-f2a01a0027b29f682c3833d582e2827a4690f661.zip | |
V4L/DVB (8937): em28xx: Fix and add some validations
Fixed and Added some validations
Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-video.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 45 |
1 files changed, 39 insertions, 6 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 600b340e3550..50d2c7a9b3c1 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -513,10 +513,17 @@ static struct videobuf_queue_ops em28xx_video_qops = { */ static int em28xx_config(struct em28xx *dev) { + int retval; /* Sets I2C speed to 100 KHz */ - if (!dev->is_em2800) - em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); + if (!dev->is_em2800) { + retval = em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); + if (retval < 0) { + em28xx_errdev("%s: em28xx_write_regs_req failed! retval [%d]\n", + __func__, retval); + return retval; + } + } /* enable vbi capturing */ @@ -1953,13 +1960,23 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, } /* register i2c bus */ - em28xx_i2c_register(dev); + errCode = em28xx_i2c_register(dev); + if (errCode < 0) { + em28xx_errdev("%s: em28xx_i2c_register - errCode [%d]!\n", + __func__, errCode); + return errCode; + } /* Do board specific init and eeprom reading */ em28xx_card_setup(dev); /* Configure audio */ - em28xx_audio_analog_set(dev); + errCode = em28xx_audio_analog_set(dev); + if (errCode < 0) { + em28xx_errdev("%s: em28xx_audio_analog_set - errCode [%d]!\n", + __func__, errCode); + return errCode; + } /* configure the device */ em28xx_config_i2c(dev); @@ -1979,6 +1996,11 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, dev->ctl_input = 2; errCode = em28xx_config(dev); + if (errCode < 0) { + em28xx_errdev("%s: em28xx_config - errCode [%d]!\n", + __func__, errCode); + return errCode; + } list_add_tail(&dev->devlist, &em28xx_devlist); @@ -2031,9 +2053,20 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, if (dev->has_msp34xx) { /* Send a reset to other chips via gpio */ - em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); + errCode = em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); + if (errCode < 0) { + em28xx_errdev("%s: em28xx_write_regs_req - msp34xx(1) failed! errCode [%d]\n", + __func__, errCode); + return errCode; + } msleep(3); - em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); + + errCode = em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); + if (errCode < 0) { + em28xx_errdev("%s: em28xx_write_regs_req - msp34xx(2) failed! errCode [%d]\n", + __func__, errCode); + return errCode; + } msleep(3); } |