fix bugs in uffs_result_to_dfs and in dfs_uffs_statfs in dfs_uffs.c

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2025 bbd45198-f89e-11dd-88c7-29a3b14d5316

1 files changed, 2 insertions, 1 deletions

diff --git a/components/dfs/filesystems/uffs/dfs_uffs.c b/components/dfs/filesystems/uffs/dfs_uffs.c
index 7a6f97a920..c8b2de3d07 100644
--- a/components/dfs/filesystems/uffs/dfs_uffs.c
+++ b/components/dfs/filesystems/uffs/dfs_uffs.c
@@ -48,6 +48,7 @@ static int uffs_result_to_dfs(int result)
 {

 	int status = -1;

 

+	result = result < 0 ? -result : result;

 	switch (result)

 	{

 	case UENOERR:/** no error */

@@ -270,7 +271,7 @@ static int dfs_uffs_statfs(struct dfs_filesystem* fs,
 	

 	buf->f_bsize = mtd->page_size;

 	buf->f_blocks = (mtd->block_size)/(mtd->page_size)*

-	                (mtd->block_start - mtd->block_end + 1);

+	                (mtd->block_end - mtd->block_start + 1);

 	buf->f_bfree = uffs_GetDeviceFree(&nand_part[index].uffs_dev) / mtd->page_size;

 	

 	return 0;