diff mbox series

[4/8] video/aperture: Only kick vgacon when the pdev is decoding vga

Message ID 20230404201842.567344-4-daniel.vetter@ffwll.ch
State New
Headers show
Series None | expand

Commit Message

Daniel Vetter April 4, 2023, 8:18 p.m. UTC
Otherwise it's bit silly, and we might throw out the driver for the
screen the user is actually looking at. I haven't found a bug report
for this case yet, but we did get bug reports for the analog case
where we're throwing out the efifb driver.

v2: Flip the check around to make it clear it's a special case for
kicking out the vgacon driver only (Thomas)

References: https://bugzilla.kernel.org/show_bug.cgi?id=216303
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/aperture.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

Comments

Javier Martinez Canillas April 5, 2023, 11:31 a.m. UTC | #1
Daniel Vetter <daniel.vetter@ffwll.ch> writes:

> Otherwise it's bit silly, and we might throw out the driver for the
> screen the user is actually looking at. I haven't found a bug report
> for this case yet, but we did get bug reports for the analog case
> where we're throwing out the efifb driver.
>
> v2: Flip the check around to make it clear it's a special case for
> kicking out the vgacon driver only (Thomas)
>
> References: https://bugzilla.kernel.org/show_bug.cgi?id=216303
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Javier Martinez Canillas <javierm@redhat.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/aperture.c | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff mbox series

Patch

diff --git a/drivers/video/aperture.c b/drivers/video/aperture.c
index 8835d3bc39bf..552cffdb827b 100644
--- a/drivers/video/aperture.c
+++ b/drivers/video/aperture.c
@@ -341,13 +341,15 @@  int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *na
 			return ret;
 	}
 
-	/*
-	 * WARNING: Apparently we must kick fbdev drivers before vgacon,
-	 * otherwise the vga fbdev driver falls over.
-	 */
-	ret = vga_remove_vgacon(pdev);
-	if (ret)
-		return ret;
+	if (primary) {
+		/*
+		 * WARNING: Apparently we must kick fbdev drivers before vgacon,
+		 * otherwise the vga fbdev driver falls over.
+		 */
+		ret = vga_remove_vgacon(pdev);
+		if (ret)
+			return ret;
+	}
 
 	return 0;