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fbdev: vga16fb: Request memory region

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This patch reserve and release VGA memory region.

This align with Documentation/drm/todo.rst
"Request memory regions in all fbdev drivers"

I've tested with 32bits kernel and qemu.

Signed-off-by: Javier Garcia <rampxxxx@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Javier Garcia
2025-10-28 20:16:15 +01:00
committed by Helge Deller
parent b8a65b2d8b
commit 6c317ceefa
1 changed files with 9 additions and 0 deletions
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9
drivers/video/fbdev/vga16fb.c
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@@ -1320,6 +1320,11 @@ static int vga16fb_probe(struct platform_device *dev)
return ret;
dev_dbg(&dev->dev, "initializing\n");
if (!request_mem_region(vga16fb_fix.smem_start, vga16fb_fix.smem_len,
"vga16b")) {
dev_err(&dev->dev, "cannot reserve video memory at 0x%lx\n",
vga16fb_fix.smem_start);
}
info = framebuffer_alloc(sizeof(struct vga16fb_par), &dev->dev);
if (!info) {
@@ -1398,6 +1403,8 @@ static int vga16fb_probe(struct platform_device *dev)
err_ioremap:
framebuffer_release(info);
err_fb_alloc:
release_mem_region(vga16fb_fix.smem_start,
vga16fb_fix.smem_len);
return ret;
}
@@ -1407,6 +1414,8 @@ static void vga16fb_remove(struct platform_device *dev)
if (info)
unregister_framebuffer(info);
release_mem_region(vga16fb_fix.smem_start,
vga16fb_fix.smem_len);
}
static const struct platform_device_id vga16fb_driver_id_table[] = {