diff options
Diffstat (limited to 'drivers/media/pci/saa7146/mxb.c')
| -rw-r--r-- | drivers/media/pci/saa7146/mxb.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/drivers/media/pci/saa7146/mxb.c b/drivers/media/pci/saa7146/mxb.c index 71e8bead321b..33abe332d175 100644 --- a/drivers/media/pci/saa7146/mxb.c +++ b/drivers/media/pci/saa7146/mxb.c @@ -669,14 +669,10 @@ static int vidioc_g_register(struct file *file, void *fh, struct v4l2_dbg_regist { struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - if (v4l2_chip_match_host(®->match)) { - reg->val = saa7146_read(dev, reg->reg); - reg->size = 4; - return 0; - } - call_all(dev, core, g_register, reg); + if (reg->reg > pci_resource_len(dev->pci, 0) - 4) + return -EINVAL; + reg->val = saa7146_read(dev, reg->reg); + reg->size = 4; return 0; } @@ -684,13 +680,10 @@ static int vidioc_s_register(struct file *file, void *fh, const struct v4l2_dbg_ { struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - if (v4l2_chip_match_host(®->match)) { - saa7146_write(dev, reg->reg, reg->val); - return 0; - } - return call_all(dev, core, s_register, reg); + if (reg->reg > pci_resource_len(dev->pci, 0) - 4) + return -EINVAL; + saa7146_write(dev, reg->reg, reg->val); + return 0; } #endif |