diff options
Diffstat (limited to 'drivers/media/video/em28xx')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-core.c | 17 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-i2c.c | 8 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 3 |
3 files changed, 21 insertions, 7 deletions
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index dff3893f32f..e5ee8bceb21 100644 --- a/drivers/media/video/em28xx/em28xx-core.c +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -139,6 +139,9 @@ int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, { int ret, byte; + if (dev->state & DEV_DISCONNECTED) + return(-ENODEV); + em28xx_regdbg("req=%02x, reg=%02x ", req, reg); ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req, @@ -165,6 +168,9 @@ int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg) u8 val; int ret; + if (dev->state & DEV_DISCONNECTED) + return(-ENODEV); + em28xx_regdbg("req=%02x, reg=%02x:", req, reg); ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req, @@ -195,7 +201,12 @@ int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, int ret; /*usb_control_msg seems to expect a kmalloced buffer */ - unsigned char *bufs = kmalloc(len, GFP_KERNEL); + unsigned char *bufs; + + if (dev->state & DEV_DISCONNECTED) + return(-ENODEV); + + bufs = kmalloc(len, GFP_KERNEL); em28xx_regdbg("req=%02x reg=%02x:", req, reg); @@ -212,7 +223,7 @@ int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), req, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0x0000, reg, bufs, len, HZ); - mdelay(5); /* FIXME: magic number */ + msleep(5); /* FIXME: magic number */ kfree(bufs); return ret; } @@ -253,7 +264,7 @@ int em28xx_write_ac97(struct em28xx *dev, u8 reg, u8 * val) if ((ret = em28xx_read_reg(dev, AC97BUSY_REG)) < 0) return ret; else if (((u8) ret) & 0x01) { - em28xx_warn ("AC97 command still being exectuted: not handled properly!\n"); + em28xx_warn ("AC97 command still being executed: not handled properly!\n"); } return 0; } diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c index 0591a705b7a..6ca8631bc36 100644 --- a/drivers/media/video/em28xx/em28xx-i2c.c +++ b/drivers/media/video/em28xx/em28xx-i2c.c @@ -78,7 +78,7 @@ static int em2800_i2c_send_max4(struct em28xx *dev, unsigned char addr, ret = dev->em28xx_read_reg(dev, 0x05); if (ret == 0x80 + len - 1) return len; - mdelay(5); + msleep(5); } em28xx_warn("i2c write timed out\n"); return -EIO; @@ -138,7 +138,7 @@ static int em2800_i2c_check_for_device(struct em28xx *dev, unsigned char addr) return -ENODEV; else if (msg == 0x84) return 0; - mdelay(5); + msleep(5); } return -ENODEV; } @@ -278,9 +278,9 @@ static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap, msgs[i].buf, msgs[i].len, i == num - 1); - if (rc < 0) - goto err; } + if (rc < 0) + goto err; if (i2c_debug>=2) printk("\n"); } diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index eea304f7517..94a14a2bb6d 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -6,6 +6,9 @@ Mauro Carvalho Chehab <mchehab@brturbo.com.br> Sascha Sommer <saschasommer@freenet.de> + Some parts based on SN9C10x PC Camera Controllers GPL driver made + by Luca Risolia <luca.risolia@studio.unibo.it> + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or |