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authorKeith Whitwell <keith@tungstengraphics.com>2002-12-12 16:45:31 +0000
committerKeith Whitwell <keith@tungstengraphics.com>2002-12-12 16:45:31 +0000
commit786228bd26d56c13fc2655431ee5ca2d4d0c9863 (patch)
treeaca4bc295550c9740a43ec763881986e0b55a553
parentfd621fd4a0c0033365353b6d33f132c7ef49b359 (diff)
bring in jantorial changes from 2.5.51
-rw-r--r--linux-core/drm_proc.c5
-rw-r--r--linux-core/i810_dma.c4
-rw-r--r--linux/drm_proc.h5
-rw-r--r--linux/i810_dma.c4
-rw-r--r--linux/sis_ds.c22
5 files changed, 26 insertions, 14 deletions
diff --git a/linux-core/drm_proc.c b/linux-core/drm_proc.c
index 24e8556f..d29db7b7 100644
--- a/linux-core/drm_proc.c
+++ b/linux-core/drm_proc.c
@@ -449,7 +449,8 @@ static int DRM(_vma_info)(char *buf, char **start, off_t offset, int request,
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));
@@ -465,6 +466,8 @@ static int DRM(_vma_info)(char *buf, char **start, off_t offset, int request,
} else {
DRM_PROC_PRINT(" 0x%08lx\n", i);
}
+ pte_unmap(pte);
+ preempt_enable();
}
#endif
}
diff --git a/linux-core/i810_dma.c b/linux-core/i810_dma.c
index 13f5f64f..ffb7c708 100644
--- a/linux-core/i810_dma.c
+++ b/linux-core/i810_dma.c
@@ -38,6 +38,7 @@
#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)
@@ -1184,7 +1185,8 @@ int i810_ov0_info(struct inode *inode, struct file *filp,
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;
}
diff --git a/linux/drm_proc.h b/linux/drm_proc.h
index 24e8556f..d29db7b7 100644
--- a/linux/drm_proc.h
+++ b/linux/drm_proc.h
@@ -449,7 +449,8 @@ static int DRM(_vma_info)(char *buf, char **start, off_t offset, int request,
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));
@@ -465,6 +466,8 @@ static int DRM(_vma_info)(char *buf, char **start, off_t offset, int request,
} else {
DRM_PROC_PRINT(" 0x%08lx\n", i);
}
+ pte_unmap(pte);
+ preempt_enable();
}
#endif
}
diff --git a/linux/i810_dma.c b/linux/i810_dma.c
index 13f5f64f..ffb7c708 100644
--- a/linux/i810_dma.c
+++ b/linux/i810_dma.c
@@ -38,6 +38,7 @@
#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)
@@ -1184,7 +1185,8 @@ int i810_ov0_info(struct inode *inode, struct file *filp,
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;
}
diff --git a/linux/sis_ds.c b/linux/sis_ds.c
index 95880a48..f55cf6ab 100644
--- a/linux/sis_ds.c
+++ b/linux/sis_ds.c
@@ -50,15 +50,16 @@ set_t *setInit(void)
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;
}
@@ -172,7 +173,8 @@ static void *calloc(size_t nmemb, size_t size)
{
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)