diff options
| author | Markus Rechberger <mrechberger@gmail.com> | 2006-02-07 06:49:11 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-02-07 06:51:36 -0200 |
| commit | 9f38724a6f9a436ce25cb0dfceea4a615ee44fb6 (patch) | |
| tree | e3f04f9cab42d8b20256ab655ba1979da599afa4 /drivers/media/video/em28xx/em28xx-core.c | |
| parent | 0dfd812d4b2afc797310943b451608d347854e76 (diff) | |
V4L/DVB (3306): Fixed i2c return value, conversion mdelay to msleep
fixed i2c return value, conversion mdelay to msleep
Signed-off-by: Markus Rechberger <mrechberger@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-core.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-core.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index 82f0c5fb241..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; } |