for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) {
pgd = pgd_offset(vma->vm_mm, i);
pmd = pmd_offset(pgd, i);
- pte = pte_offset(pmd, i);
+ preempt_disable();
+ pte = pte_offset_map(pmd, i);
if (pte_present(*pte)) {
address = __pa(pte_page(*pte))
+ (i & (PAGE_SIZE-1));
} else {
DRM_PROC_PRINT(" 0x%08lx\n", i);
}
+ pte_unmap(pte);
+ preempt_enable();
}
#endif
}
#include "i810_drv.h"
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
+#include <linux/pagemap.h>
#ifdef DO_MUNMAP_4_ARGS
#define DO_MUNMAP(m, a, l) do_munmap(m, a, l, 1)
data.offset = dev_priv->overlay_offset;
data.physical = dev_priv->overlay_physical;
- copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data));
+ if (copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data)))
+ return -EFAULT;
return 0;
}
for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) {
pgd = pgd_offset(vma->vm_mm, i);
pmd = pmd_offset(pgd, i);
- pte = pte_offset(pmd, i);
+ preempt_disable();
+ pte = pte_offset_map(pmd, i);
if (pte_present(*pte)) {
address = __pa(pte_page(*pte))
+ (i & (PAGE_SIZE-1));
} else {
DRM_PROC_PRINT(" 0x%08lx\n", i);
}
+ pte_unmap(pte);
+ preempt_enable();
}
#endif
}
#include "i810_drv.h"
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
+#include <linux/pagemap.h>
#ifdef DO_MUNMAP_4_ARGS
#define DO_MUNMAP(m, a, l) do_munmap(m, a, l, 1)
data.offset = dev_priv->overlay_offset;
data.physical = dev_priv->overlay_physical;
- copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data));
+ if (copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data)))
+ return -EFAULT;
return 0;
}
set_t *set;
set = (set_t *)MALLOC(sizeof(set_t));
- for(i = 0; i < SET_SIZE; i++){
- set->list[i].free_next = i+1;
- set->list[i].alloc_next = -1;
- }
- set->list[SET_SIZE-1].free_next = -1;
- set->free = 0;
- set->alloc = -1;
- set->trace = -1;
-
+ if (set) {
+ for(i = 0; i < SET_SIZE; i++){
+ set->list[i].free_next = i+1;
+ set->list[i].alloc_next = -1;
+ }
+ set->list[SET_SIZE-1].free_next = -1;
+ set->free = 0;
+ set->alloc = -1;
+ set->trace = -1;
+ }
return set;
}
{
void *addr;
addr = kmalloc(nmemb*size, GFP_KERNEL);
- memset(addr, 0, nmemb*size);
+ if (addr)
+ memset(addr, 0, nmemb*size);
return addr;
}
#define free(n) kfree(n)