diff options
Diffstat (limited to 'linux/i810_dma.c')
| -rw-r--r-- | linux/i810_dma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/linux/i810_dma.c b/linux/i810_dma.c index 13f5f64fb..ffb7c7086 100644 --- a/linux/i810_dma.c +++ b/linux/i810_dma.c @@ -38,6 +38,7 @@ #include "i810_drv.h" #include <linux/interrupt.h> /* For task queue support */ #include <linux/delay.h> +#include <linux/pagemap.h> #ifdef DO_MUNMAP_4_ARGS #define DO_MUNMAP(m, a, l) do_munmap(m, a, l, 1) @@ -1184,7 +1185,8 @@ int i810_ov0_info(struct inode *inode, struct file *filp, data.offset = dev_priv->overlay_offset; data.physical = dev_priv->overlay_physical; - copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data)); + if (copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data))) + return -EFAULT; return 0; } |