[AGPGART] Fix up lots of 'comparison between signed and unsigned' warnings

drivers/char/agp/frontend.c

@@ -97,7 +97,9 @@ static agp_segment_priv *agp_find_seg_in_client(const agp_client * client,
 					    int size, pgprot_t page_prot)
 {
 	agp_segment_priv *seg;
-	int num_segments, pg_start, pg_count, i;
+	int num_segments, i;
+	off_t pg_start;
+	size_t pg_count;
 
 	pg_start = offset / 4096;
 	pg_count = size / 4096;
@@ -174,7 +176,7 @@ static int agp_create_segment(agp_client * client, agp_region * region)
 	agp_segment_priv **ret_seg;
 	agp_segment_priv *seg;
 	agp_segment *user_seg;
-	int i;
+	size_t i;
 
 	seg = kmalloc((sizeof(agp_segment_priv) * region->seg_count), GFP_KERNEL);
 	if (seg == NULL) {
@@ -578,8 +580,7 @@ static int agp_remove_client(pid_t id)
 
 static int agp_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	int size;
-	int current_size;
+	unsigned int size, current_size;
 	unsigned long offset;
 	agp_client *client;
 	agp_file_private *priv = (agp_file_private *) file->private_data;

drivers/char/agp/generic.c

@@ -96,7 +96,7 @@ agp_memory *agp_create_memory(int scratch_pages)
 
 void agp_free_memory(agp_memory * curr)
 {
-	int i;
+	size_t i;
 
 	if ((agp_bridge.type == NOT_SUPPORTED) || (curr == NULL))
 		return;
@@ -124,7 +124,7 @@ agp_memory *agp_allocate_memory(size_t page_count, u32 type)
 {
 	int scratch_pages;
 	agp_memory *new;
-	int i;
+	size_t i;
 
 	if (agp_bridge.type == NOT_SUPPORTED)
 		return NULL;
@@ -585,7 +585,9 @@ int agp_generic_free_gatt_table(void)
 
 int agp_generic_insert_memory(agp_memory * mem, off_t pg_start, int type)
 {
-	int i, j, num_entries;
+	int num_entries;
+	size_t i;
+	off_t j;
 	void *temp;
 
 	temp = agp_bridge.current_size;
@@ -648,7 +650,7 @@ int agp_generic_insert_memory(agp_memory * mem, off_t pg_start, int type)
 
 int agp_generic_remove_memory(agp_memory * mem, off_t pg_start, int type)
 {
-	int i;
+	size_t i;
 
 	if (type != 0 || mem->type != 0) {
 		/* The generic routines know nothing of memory types */