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eCryptfs: fix data types

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Update data types and add casts in order to avoid potential overflow
issues.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michael Halcrow
2007-10-16 01:28:12 -07:00
committed by Linus Torvalds
parent bf12be1cc8
commit d6a13c1716
3 changed files with 21 additions and 16 deletions
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fs/ecryptfs/mmap.c
+3 -2
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@@ -286,7 +286,8 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
int rc = 0;
while (extent_num_in_page < num_extents_per_page) {
loff_t view_extent_num = ((page->index * num_extents_per_page)
loff_t view_extent_num = ((((loff_t)page->index)
* num_extents_per_page)
+ extent_num_in_page);
if (view_extent_num < crypt_stat->num_header_extents_at_front) {
@@ -706,7 +707,7 @@ static int ecryptfs_commit_write(struct file *file, struct page *page,
"index [0x%.16x])\n", page->index);
goto out;
}
pos = (page->index << PAGE_CACHE_SHIFT) + to;
pos = (((loff_t)page->index) << PAGE_CACHE_SHIFT) + to;
if (pos > i_size_read(ecryptfs_inode)) {
i_size_write(ecryptfs_inode, pos);
ecryptfs_printk(KERN_DEBUG, "Expanded file size to "