diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-07 04:01:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-07 04:01:47 +0200 |
| commit | 053f78d359953be40043972c98e16b3f1cd9fc27 (patch) | |
| tree | 80185e1554da6362dd3ca411a3e724864c59dc05 /fs/squashfs/file_direct.c | |
| parent | Merge tag 'extcon-fixes-for-4.6-rc3' of git://git.kernel.org/pub/scm/linux/ke... (diff) | |
| parent | lkdtm: do not leak free page on kmalloc failure (diff) | |
| download | linux-053f78d359953be40043972c98e16b3f1cd9fc27.tar.xz linux-053f78d359953be40043972c98e16b3f1cd9fc27.zip | |
Merge tag 'lkdtm-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into char-misc-linus
Kees briefly writes:
fixes some possible memory allocation leaks on error paths
Diffstat (limited to 'fs/squashfs/file_direct.c')
| -rw-r--r-- | fs/squashfs/file_direct.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/fs/squashfs/file_direct.c b/fs/squashfs/file_direct.c index 43e7a7eddac0..cb485d8e0e91 100644 --- a/fs/squashfs/file_direct.c +++ b/fs/squashfs/file_direct.c @@ -30,8 +30,8 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize) struct inode *inode = target_page->mapping->host; struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; - int file_end = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT; - int mask = (1 << (msblk->block_log - PAGE_CACHE_SHIFT)) - 1; + int file_end = (i_size_read(inode) - 1) >> PAGE_SHIFT; + int mask = (1 << (msblk->block_log - PAGE_SHIFT)) - 1; int start_index = target_page->index & ~mask; int end_index = start_index | mask; int i, n, pages, missing_pages, bytes, res = -ENOMEM; @@ -68,7 +68,7 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize) if (PageUptodate(page[i])) { unlock_page(page[i]); - page_cache_release(page[i]); + put_page(page[i]); page[i] = NULL; missing_pages++; } @@ -96,10 +96,10 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize) goto mark_errored; /* Last page may have trailing bytes not filled */ - bytes = res % PAGE_CACHE_SIZE; + bytes = res % PAGE_SIZE; if (bytes) { pageaddr = kmap_atomic(page[pages - 1]); - memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); + memset(pageaddr + bytes, 0, PAGE_SIZE - bytes); kunmap_atomic(pageaddr); } @@ -109,7 +109,7 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize) SetPageUptodate(page[i]); unlock_page(page[i]); if (page[i] != target_page) - page_cache_release(page[i]); + put_page(page[i]); } kfree(actor); @@ -127,7 +127,7 @@ mark_errored: flush_dcache_page(page[i]); SetPageError(page[i]); unlock_page(page[i]); - page_cache_release(page[i]); + put_page(page[i]); } out: @@ -153,21 +153,21 @@ static int squashfs_read_cache(struct page *target_page, u64 block, int bsize, } for (n = 0; n < pages && bytes > 0; n++, - bytes -= PAGE_CACHE_SIZE, offset += PAGE_CACHE_SIZE) { - int avail = min_t(int, bytes, PAGE_CACHE_SIZE); + bytes -= PAGE_SIZE, offset += PAGE_SIZE) { + int avail = min_t(int, bytes, PAGE_SIZE); if (page[n] == NULL) continue; pageaddr = kmap_atomic(page[n]); squashfs_copy_data(pageaddr, buffer, offset, avail); - memset(pageaddr + avail, 0, PAGE_CACHE_SIZE - avail); + memset(pageaddr + avail, 0, PAGE_SIZE - avail); kunmap_atomic(pageaddr); flush_dcache_page(page[n]); SetPageUptodate(page[n]); unlock_page(page[n]); if (page[n] != target_page) - page_cache_release(page[n]); + put_page(page[n]); } out: |