jlaitine commented on code in PR #8000:
URL: https://github.com/apache/nuttx/pull/8000#discussion_r1059910325
##########
drivers/video/fb.c:
##########
@@ -682,6 +675,30 @@ static int fb_ioctl(FAR struct file *filep, int cmd,
unsigned long arg)
return ret;
}
+static int fb_mmap(FAR struct file *filep, FAR void **addr, off_t start,
+ size_t length)
+{
+ FAR struct inode *inode;
+ FAR struct fb_chardev_s *fb;
+ int ret = -EINVAL;
+
+ /* Get the framebuffer instance */
+
+ DEBUGASSERT(filep != NULL && filep->f_inode != NULL);
+ inode = filep->f_inode;
+ fb = (FAR struct fb_chardev_s *)inode->i_private;
+
+ /* Return the address corresponding to the start of frame buffer. */
Review Comment:
this is the original code:
```
- case FIOC_MMAP: /* Get color plane info */
- {
- FAR void **ppv = (FAR void **)((uintptr_t)arg);
-
- /* Return the address corresponding to the start of frame buffer.
*/
-
- DEBUGASSERT(ppv != NULL);
- *ppv = fb->fbmem;
- ret = OK;
- }
- break;
```
There is no such checks
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