fixed block close() method prototype

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1068 c046a42c-6fe2-441c-8c8c-71466251a162

block-cow.c

@@ -202,7 +202,7 @@ static int cow_write(BlockDriverState *bs, int64_t sector_num,
     return 0;
 }
 
-static int cow_close(BlockDriverState *bs)
+static void cow_close(BlockDriverState *bs)
 {
     BDRVCowState *s = bs->opaque;
     munmap(s->cow_bitmap_addr, s->cow_bitmap_size);

block-qcow.c

@@ -521,7 +521,7 @@ static int qcow_write(BlockDriverState *bs, int64_t sector_num,
     return 0;
 }
 
-static int qcow_close(BlockDriverState *bs)
+static void qcow_close(BlockDriverState *bs)
 {
     BDRVQcowState *s = bs->opaque;
     qemu_free(s->l1_table);

block-vmdk.c

@@ -258,7 +258,7 @@ static int vmdk_write(BlockDriverState *bs, int64_t sector_num,
     return -1;
 }
 
-static int vmdk_close(BlockDriverState *bs)
+static void vmdk_close(BlockDriverState *bs)
 {
     BDRVVmdkState *s = bs->opaque;
     qemu_free(s->l1_table);

block.c

@@ -554,7 +554,7 @@ static int raw_write(BlockDriverState *bs, int64_t sector_num,
     return 0;
 }
 
-static int raw_close(BlockDriverState *bs)
+static void raw_close(BlockDriverState *bs)
 {
     BDRVRawState *s = bs->opaque;
     close(s->fd);

block_int.h

@@ -33,7 +33,7 @@ struct BlockDriver {
                      uint8_t *buf, int nb_sectors);
     int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num, 
                       const uint8_t *buf, int nb_sectors);
-    int (*bdrv_close)(BlockDriverState *bs);
+    void (*bdrv_close)(BlockDriverState *bs);
     int (*bdrv_create)(const char *filename, int64_t total_sectors, 
                        const char *backing_file, int flags);
     int (*bdrv_is_allocated)(BlockDriverState *bs, int64_t sector_num,