hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

fbdev: allow apertures == NULL in remove_conflicting_framebuffers() 

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code
from drivers in following patches.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/b5fed539fe569035139c8594c23effd8c39f12ca.1535810304.git.mirq-linux@rere.qmqm.pl
This commit is contained in:
Michał Mirosław 2018-09-01 16:08:44 +02:00 committed by Daniel Vetter
parent fbc42d455a
commit 5fa793d366
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/video/fbdev/core/fbmem.c
View File

@ -1797,11 +1797,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
const char *name, bool primary)
{
int ret;
bool do_free = false;
if (!a) {
a = alloc_apertures(1);
if (!a)
return -ENOMEM;
a->ranges[0].base = 0;
a->ranges[0].size = ~0;
do_free = true;
}
mutex_lock(&registration_lock);
ret = do_remove_conflicting_framebuffers(a, name, primary);
mutex_unlock(&registration_lock);
if (do_free)
kfree(a);
return ret;
}
EXPORT_SYMBOL(remove_conflicting_framebuffers);