diff options
Diffstat (limited to 'linux/i810_dma.c')
| -rw-r--r-- | linux/i810_dma.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/linux/i810_dma.c b/linux/i810_dma.c index 19b7bd92..e2a86606 100644 --- a/linux/i810_dma.c +++ b/linux/i810_dma.c @@ -490,8 +490,8 @@ int i810_dma_init(struct inode *inode, struct file *filp, drm_i810_init_t init; int retcode = 0; - copy_from_user_ret(&init, (drm_i810_init_t *)arg, - sizeof(init), -EFAULT); + if (copy_from_user(&init, (drm_i810_init_t *)arg, sizeof(init))) + return -EFAULT; switch(init.func) { case I810_INIT_DMA: @@ -1005,7 +1005,8 @@ int i810_control(struct inode *inode, struct file *filp, unsigned int cmd, DRM_DEBUG( "i810_control\n"); - copy_from_user_ret(&ctl, (drm_control_t *)arg, sizeof(ctl), -EFAULT); + if (copy_from_user(&ctl, (drm_control_t *)arg, sizeof(ctl))) + return -EFAULT; switch (ctl.func) { case DRM_INST_HANDLER: @@ -1178,7 +1179,8 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd, int ret = 0; drm_lock_t lock; - copy_from_user_ret(&lock, (drm_lock_t *)arg, sizeof(lock), -EFAULT); + if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock))) + return -EFAULT; if (lock.context == DRM_KERNEL_CONTEXT) { DRM_ERROR("Process %d using kernel context %d\n", @@ -1227,6 +1229,15 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd, } if (!ret) { + sigemptyset(&dev->sigmask); + sigaddset(&dev->sigmask, SIGSTOP); + sigaddset(&dev->sigmask, SIGTSTP); + sigaddset(&dev->sigmask, SIGTTIN); + sigaddset(&dev->sigmask, SIGTTOU); + dev->sigdata.context = lock.context; + dev->sigdata.lock = dev->lock.hw_lock; + block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask); + if (lock.flags & _DRM_LOCK_QUIESCENT) { DRM_DEBUG("_DRM_LOCK_QUIESCENT\n"); DRM_DEBUG("fred\n"); @@ -1266,8 +1277,8 @@ int i810_dma_vertex(struct inode *inode, struct file *filp, dev_priv->sarea_priv; drm_i810_vertex_t vertex; - copy_from_user_ret(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex), - -EFAULT); + if (copy_from_user(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex))) + return -EFAULT; if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) { DRM_ERROR("i810_dma_vertex called without lock held\n"); @@ -1298,8 +1309,8 @@ int i810_clear_bufs(struct inode *inode, struct file *filp, drm_device_t *dev = priv->dev; drm_i810_clear_t clear; - copy_from_user_ret(&clear, (drm_i810_clear_t *)arg, sizeof(clear), - -EFAULT); + if (copy_from_user(&clear, (drm_i810_clear_t *)arg, sizeof(clear))) + return -EFAULT; if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) { DRM_ERROR("i810_clear_bufs called without lock held\n"); @@ -1356,7 +1367,8 @@ int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd, dev_priv->sarea_priv; DRM_DEBUG("getbuf\n"); - copy_from_user_ret(&d, (drm_i810_dma_t *)arg, sizeof(d), -EFAULT); + if (copy_from_user(&d, (drm_i810_dma_t *)arg, sizeof(d))) + return -EFAULT; if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) { DRM_ERROR("i810_dma called without lock held\n"); @@ -1370,7 +1382,8 @@ int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd, DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n", current->pid, retcode, d.granted); - copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT); + if (copy_to_user((drm_dma_t *)arg, &d, sizeof(d))) + return -EFAULT; sarea_priv->last_dispatch = (int) hw_status[5]; return retcode; @@ -1395,14 +1408,16 @@ int i810_copybuf(struct inode *inode, struct file *filp, unsigned int cmd, return -EINVAL; } - copy_from_user_ret(&d, (drm_i810_copy_t *)arg, sizeof(d), -EFAULT); + if (copy_from_user(&d, (drm_i810_copy_t *)arg, sizeof(d))) + return -EFAULT; if(d.idx > dma->buf_count) return -EINVAL; buf = dma->buflist[ d.idx ]; buf_priv = buf->dev_private; if (buf_priv->currently_mapped != I810_BUF_MAPPED) return -EPERM; - copy_from_user_ret(buf_priv->virtual, d.address, d.used, -EFAULT); + if (copy_from_user(buf_priv->virtual, d.address, d.used)) + return -EFAULT; sarea_priv->last_dispatch = (int) hw_status[5]; |