[PATCH v2 18/18] fbdev: Document that framebuffer_alloc() returns zero'ed data
Thomas Zimmermann <[email protected]>
| Newsgroups | gmane.comp.freedesktop.amd-gfx,gmane.comp.emulators.kvm.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.geode,gmane.comp.video.dri.devel,gmane.linux.kernel.input,gmane.linux.ports.arm.omap,gmane.linux.ports.ppc64.devel,gmane.linux.ports.arm.kernel,gmane.linux.drivers.video-input-infrastructure |
|---|---|
| Message-ID | <[email protected]> |
Most fbdev drivers depend on framebuffer_alloc() to initialize the allocated memory to 0. Document this guarantee. Suggested-by: Miguel Ojeda <[email protected]> Signed-off-by: Thomas Zimmermann <[email protected]> Cc: Helge Deller <[email protected]> --- drivers/video/fbdev/core/fb_info.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/core/fb_info.c b/drivers/video/fbdev/core/fb_info.c index 8bdbefdd4b70..1b7615fc393d 100644 --- a/drivers/video/fbdev/core/fb_info.c +++ b/drivers/video/fbdev/core/fb_info.c @@ -13,7 +13,8 @@ * * Creates a new frame buffer info structure. Also reserves @size bytes * for driver private data (info->par). info->par (if any) will be - * aligned to sizeof(long). + * aligned to sizeof(long). Both, the instance of struct fb_info and + * the driver private data, are cleared to zero. * * Returns the new structure, or NULL if an error occurred. * -- 2.41.0