AcoSail/kernel_optimize_test
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Revert "fb: Initialize fb_info mutexes in framebuffer_alloc()"

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This reverts commit 4148df9b0f.

Let's hope that the mm_lock initialization is now correct with all
drivers, following Krzysztof's patches.

Requested-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2009-07-08 09:20:11 -07:00
parent 99f5d48b98
commit 6c96895e99
4 changed files with 4 additions and 4 deletions
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2
drivers/video/fbmem.c
View File

@ -1513,6 +1513,8 @@ register_framebuffer(struct fb_info *fb_info)
if (!registered_fb[i])
break;
fb_info->node = i;
mutex_init(&fb_info->lock);
mutex_init(&fb_info->mm_lock);
fb_info->dev = device_create(fb_class, fb_info->device,
MKDEV(FB_MAJOR, i), NULL, "fb%d", i);

3
drivers/video/fbsysfs.c
View File

@ -62,9 +62,6 @@ struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
mutex_init(&info->bl_curve_mutex);
#endif
mutex_init(&info->lock);
mutex_init(&info->mm_lock);
return info;
#undef PADDING
#undef BYTES_PER_LONG

1
drivers/video/matrox/matroxfb_base.c
View File

@ -2082,7 +2082,6 @@ static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dumm
spin_lock_init(&ACCESS_FBINFO(lock.accel));
init_rwsem(&ACCESS_FBINFO(crtc2.lock));
init_rwsem(&ACCESS_FBINFO(altout.lock));
mutex_init(&ACCESS_FBINFO(fbcon).lock);
mutex_init(&ACCESS_FBINFO(fbcon).mm_lock);
ACCESS_FBINFO(irq_flags) = 0;
init_waitqueue_head(&ACCESS_FBINFO(crtc1.vsync.wait));

2
drivers/video/sm501fb.c
View File

@ -1624,6 +1624,8 @@ static int __devinit sm501fb_start_one(struct sm501fb_info *info,
if (!fbi)
return 0;
mutex_init(&info->fb[head]->mm_lock);
ret = sm501fb_init_fb(info->fb[head], head, drvname);
if (ret) {
dev_err(info->dev, "cannot initialise fb %s\n", drvname);