42 lines
1.1 KiB
Diff
42 lines
1.1 KiB
Diff
|
--- a/drivers/video/omap/omapfb_main.c
|
||
|
|
+++ b/drivers/video/omap/omapfb_main.c
|
||
|
|
@@ -420,10 +420,10 @@ static void set_fb_fix(struct fb_info *f
|
||
|
|
fbi->screen_base = rg->vaddr;
|
||
|
|
|
||
|
|
if (!from_init) {
|
||
|
|
- mutex_lock(&fbi->mm_lock);
|
||
|
|
+ preempt_disable();
|
||
|
|
fix->smem_start = rg->paddr;
|
||
|
|
fix->smem_len = rg->size;
|
||
|
|
- mutex_unlock(&fbi->mm_lock);
|
||
|
|
+ preempt_enable();
|
||
|
|
} else {
|
||
|
|
fix->smem_start = rg->paddr;
|
||
|
|
fix->smem_len = rg->size;
|
||
|
|
@@ -933,10 +933,10 @@ static int omapfb_setup_mem(struct fb_in
|
||
|
|
* plane memory is dealloce'd, the other
|
||
|
|
* screen parameters in var / fix are invalid.
|
||
|
|
*/
|
||
|
|
- mutex_lock(&fbi->mm_lock);
|
||
|
|
+ preempt_disable();
|
||
|
|
fbi->fix.smem_start = 0;
|
||
|
|
fbi->fix.smem_len = 0;
|
||
|
|
- mutex_unlock(&fbi->mm_lock);
|
||
|
|
+ preempt_enable();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
--- a/drivers/video/fbmem.c
|
||
|
|
+++ b/drivers/video/fbmem.c
|
||
|
|
@@ -1383,8 +1383,10 @@ fb_mmap(struct file *file, struct vm_are
|
||
|
|
}
|
||
|
|
|
||
|
|
/* frame buffer memory */
|
||
|
|
+ preempt_disable();
|
||
|
|
start = info->fix.smem_start;
|
||
|
|
len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len);
|
||
|
|
+ preempt_enable();
|
||
|
|
if (off >= len) {
|
||
|
|
/* memory mapped io */
|
||
|
|
off -= len;
|