The patch titled
efifb: exit if framebuffer address is invalid
has been removed from the -mm tree. Its filename was
efifb-exit-if-framebuffer-address-is-invalid.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: efifb: exit if framebuffer address is invalid
From: Matthew Garrett <mjg59@xxxxxxxxxxxxx>
efifb will attempt to ioremap a framebuffer even if its starting address
is 0, failing and causing an ugly backtrace in the process. Exit before
probing if this is the case.
Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx>
Acked-by: Peter Jones <pjones@xxxxxxxxxx>
Cc: Krzysztof Helt <krzysztof.h1@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/efifb.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff -puN drivers/video/efifb.c~efifb-exit-if-framebuffer-address-is-invalid drivers/video/efifb.c
--- a/drivers/video/efifb.c~efifb-exit-if-framebuffer-address-is-invalid
+++ a/drivers/video/efifb.c
@@ -210,12 +210,15 @@ static int __init efifb_probe(struct pla
unsigned int size_total;
int request_succeeded = 0;
- printk(KERN_INFO "efifb: probing for efifb\n");
-
if (!screen_info.lfb_depth)
screen_info.lfb_depth = 32;
if (!screen_info.pages)
screen_info.pages = 1;
+ if (!screen_info.lfb_base) {
+ printk(KERN_DEBUG "efifb: invalid framebuffer address\n");
+ return -ENODEV;
+ }
+ printk(KERN_INFO "efifb: probing for efifb\n");
/* just assume they're all unset if any are */
if (!screen_info.blue_size) {
_
Patches currently in -mm which might be from mjg59@xxxxxxxxxxxxx are
origin.patch
linux-next.patch
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