[PATCH] spufs: fix sparse warnings

[linux-2.6-omap-h63xx.git] / fs / isofs / compress.c

diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index 34a44e451689afd59aa30449b56f938bd0109f60..4917315db732e881cecbd50e89573333205d9959 100644 (file)
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c
@@ -129,8 +129,14 @@ static int zisofs_readpage(struct file *file, struct page *page)
        cend = le32_to_cpu(*(__le32 *)(bh->b_data + (blockendptr & bufmask)));
        brelse(bh);
 
+       if (cstart > cend)
+               goto eio;
+               
        csize = cend-cstart;
 
+       if (csize > deflateBound(1UL << zisofs_block_shift))
+               goto eio;
+
        /* Now page[] contains an array of pages, any of which can be NULL,
           and the locks on which we hold.  We should now read the data and
           release the pages.  If the pages are NULL the decompressed data