Hello Sam,
On 5/3/22 19:14, Sam Ravnborg wrote:
> Hi Javier,
>
[snip]
>>
>> int fb_deferred_io_fsync(struct file *file, loff_t start, loff_t end, int
>> datasync)
>> {
>> -struct fb_info *info = file->private_data;
>> +struct fb_info *info = fb_file_fb_info(file->private_data);
>
Hi Javier,
On Tue, May 03, 2022 at 06:46:16PM +0200, Javier Martinez Canillas wrote:
> A reference to the framebuffer device struct fb_info is stored in the file
> private data, but this reference could no longer be valid and must not be
> accessed directly. Instead, the file_fb_info() accessor
A reference to the framebuffer device struct fb_info is stored in the file
private data, but this reference could no longer be valid and must not be
accessed directly. Instead, the file_fb_info() accessor function must be
used since it does sanity checking to make sure that the fb_info is valid.
