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kernel_arpi/drivers/video/fbdev
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Javier Martinez Canillas 90342e02b4 fbdev: Prevent probing generic drivers if a FB is already registered 
commit fb561bf9abde49f7e00fdbf9ed2ccf2d86cac8ee upstream.

The efifb and simplefb drivers just render to a pre-allocated frame buffer
and rely on the display hardware being initialized before the kernel boots.

But if another driver already probed correctly and registered a fbdev, the
generic drivers shouldn't be probed since an actual driver for the display
hardware is already present.

This is more likely to occur after commit d391c58271 ("drivers/firmware:
move x86 Generic System Framebuffers support") since the "efi-framebuffer"
and "simple-framebuffer" platform devices are registered at a later time.

Link: https://lore.kernel.org/r/20211110200253.rfudkt3edbd3nsyj@lahvuun/
Fixes: d391c58271 ("drivers/firmware: move x86 Generic System Framebuffers support")
Reported-by: Ilya Trukhanov <lahvuun@gmail.com>
Cc: <stable@vger.kernel.org> # 5.15.x
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Ilya Trukhanov <lahvuun@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211111115757.1351045-1-javierm@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-25 09:48:45 +01:00
..
aty
video: fbdev: atyfb: mach64_cursor.c: deleted the repeated word
2021-06-03 10:32:49 +02:00
core
fbmem: don't allow too huge resolutions
2021-09-08 18:52:04 +02:00
geode
…
i810
…
intelfb
…
kyro
video: fbdev: kyro: Error out if 'pixclock' equals zero
2021-07-26 20:06:00 +02:00
matrox
fbdev: matrox: use modern module_init()
2021-05-26 21:31:19 +02:00
mb862xx
video: fbdev: mb862xx: use DEVICE_ATTR_RO macro
2021-06-03 10:32:49 +02:00
mmp
…
nvidia
…
omap
video: omap: Remove in_interrupt() usage.
2021-02-18 15:14:32 +01:00
omap2
fbdev/omap2: use DEFINE_SPINLOCK() instead of spin_lock_init().
2021-06-17 19:43:42 +02:00
riva
video: fbdev: riva: Error out if 'pixclock' equals zero
2021-07-26 20:06:03 +02:00
savage
…
sis
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vermilion
…
via
…
68328fb.c
…
acornfb.c
video: fbdev: acornfb: remove free_unused_pages()
2021-02-24 13:38:31 -08:00
acornfb.h
…
amba-clcd.c
Merge tag 'drm-misc-next-2021-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-03-16 17:08:46 +10:00
amifb.c
backlight/video: Use Platform getter/setter functions
2021-02-12 10:01:45 +00:00
arcfb.c
video: fbdev: arcfb: remove redundant initialization of variable err
2021-07-21 13:09:21 +02:00
arkfb.c
…
asiliantfb.c
video: fbdev: asiliantfb: Error out if 'pixclock' equals zero
2021-07-26 20:05:50 +02:00
atafb_iplan2p2.c
…
atafb_iplan2p4.c
…
atafb_iplan2p8.c
…
atafb_mfb.c
…
atafb_utils.h
…
atafb.c
…
atafb.h
…
atmel_lcdfb.c
…
au1100fb.c
…
au1100fb.h
…
au1200fb.c
…
au1200fb.h
…
broadsheetfb.c
…
bt431.h
…
bt455.h
…
bw2.c
…
c2p_core.h
…
c2p_iplan2.c
…
c2p_planar.c
…
c2p.h
…
carminefb_regs.h
…
carminefb.c
…
carminefb.h
…
cg3.c
…
cg6.c
…
cg14.c
…
chipsfb.c
video: fbdev: chipsfb: use memset_io() instead of memset()
2021-11-18 19:16:51 +01:00
cirrusfb.c
…
clps711x-fb.c
…
cobalt_lcdfb.c
…
controlfb.c
…
controlfb.h
…
cyber2000fb.c
…
cyber2000fb.h
…
da8xx-fb.c
backlight/video: Use Platform getter/setter functions
2021-02-12 10:01:45 +00:00
dnfb.c
…
edid.h
…
efifb.c
fbdev: Prevent probing generic drivers if a FB is already registered
2021-11-25 09:48:45 +01:00
ep93xx-fb.c
video: ep93xx: Prepare clock before using it
2021-07-26 22:10:29 +02:00
ffb.c
…
fm2fb.c
…
fsl-diu-fb.c
…
g364fb.c
…
gbefb.c
video: fbdev: gbefb: Only instantiate device when built for IP32
2021-10-06 11:12:28 +02:00
goldfishfb.c
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grvga.c
…
gxt4500.c
…
hecubafb.c
…
hgafb.c
video: hgafb: correctly handle card detect failure during probe
2021-05-21 15:04:05 +02:00
hitfb.c
…
hpfb.c
…
hyperv_fb.c
kernel.h: split out panic and oops helpers
2021-07-01 11:06:04 -07:00
i740_reg.h
…
i740fb.c
…
imsttfb.c
video: imsttfb: check for ioremap() failures
2021-05-13 18:58:39 +02:00
imxfb.c
video: fbdev: imxfb: Fix an error message
2021-05-07 18:34:18 +02:00
Kconfig
fbdev: simplefb: fix Kconfig dependencies
2021-10-06 11:12:28 +02:00
leo.c
…
macfb.c
…
macmodes.c
…
macmodes.h
…
Makefile
…
maxinefb.c
…
metronomefb.c
…
mx3fb.c
…
n411.c
…
neofb.c
video: fbdev: neofb: add a check against divide error
2021-07-21 15:02:03 +02:00
ocfb.c
…
offb.c
…
p9100.c
…
platinumfb.c
…
platinumfb.h
…
pm2fb.c
…
pm3fb.c
…
pmag-aa-fb.c
…
pmag-ba-fb.c
…
pmagb-b-fb.c
…
ps3fb.c
…
pvr2fb.c
…
pxa3xx-gcu.c
…
pxa3xx-gcu.h
…
pxa168fb.c
…
pxa168fb.h
…
pxafb.c
…
pxafb.h
…
q40fb.c
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s1d13xxxfb.c
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s3c2410fb-regs-lcd.h
…
s3c2410fb.c
…
s3c2410fb.h
…
s3c-fb.c
…
s3fb.c
…
sa1100fb.c
…
sa1100fb.h
…
sbuslib.c
…
sbuslib.h
…
sh7760fb.c
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sh_mobile_lcdcfb.c
…
sh_mobile_lcdcfb.h
…
simplefb.c
fbdev: Prevent probing generic drivers if a FB is already registered
2021-11-25 09:48:45 +01:00
skeletonfb.c
…
sm501fb.c
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sm712.h
…
sm712fb.c
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smscufx.c
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ssd1307fb.c
video: fbdev: ssd1307fb: Cache address ranges
2021-07-27 17:18:26 +02:00
sstfb.c
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sticore.h
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stifb.c
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sunxvr500.c
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sunxvr1000.c
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sunxvr2500.c
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tcx.c
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tdfxfb.c
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tgafb.c
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tmiofb.c
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tridentfb.c
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udlfb.c
udlfb: Fix memory leak in dlfb_usb_probe
2020-12-15 13:44:14 +01:00
uvesafb.c
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valkyriefb.c
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valkyriefb.h
…
vesafb.c
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vfb.c
…
vga16fb.c
treewide: remove editor modelines and cruft
2021-05-07 00:26:34 -07:00
vt8500lcdfb.c
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vt8500lcdfb.h
…
vt8623fb.c
…
w100fb.c
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w100fb.h
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wm8505fb_regs.h
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wm8505fb.c
…
wmt_ge_rops.c
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wmt_ge_rops.h
…
xen-fbfront.c
…
xilinxfb.c
video: fbdev: Fix fall-through warning for Clang
2021-07-13 13:58:29 -05:00