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| author | Liu Song <liu.song11@zte.com.cn> | 2019-11-29 17:33:52 +0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-01-27 18:55:41 +0300 |
| commit | c3917a04843fa38d9e3926e7508813e115d3df78 (patch) | |
| tree | 0fc374580ddc59d6e559a1bb82161b27563ff6fc /drivers/mtd | |
| parent | 0bc448b49e8a017e16edf843baf5b4221e191b1f (diff) | |
| download | linux-c3917a04843fa38d9e3926e7508813e115d3df78.tar.xz | |
mtd: block2mtd: page index should use pgoff_t
Page index use pgoff_t to prevent risk of truncation.
Signed-off-by: Liu Song <liu.song11@zte.com.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/devices/block2mtd.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 410a321682e6..36aa082f6db0 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -44,7 +44,7 @@ struct block2mtd_dev { static LIST_HEAD(blkmtd_device_list); -static struct page *page_read(struct address_space *mapping, int index) +static struct page *page_read(struct address_space *mapping, pgoff_t index) { return read_mapping_page(mapping, index, NULL); } @@ -54,7 +54,7 @@ static int _block2mtd_erase(struct block2mtd_dev *dev, loff_t to, size_t len) { struct address_space *mapping = dev->blkdev->bd_inode->i_mapping; struct page *page; - int index = to >> PAGE_SHIFT; // page index + pgoff_t index = to >> PAGE_SHIFT; // page index int pages = len >> PAGE_SHIFT; u_long *p; u_long *max; @@ -103,7 +103,7 @@ static int block2mtd_read(struct mtd_info *mtd, loff_t from, size_t len, { struct block2mtd_dev *dev = mtd->priv; struct page *page; - int index = from >> PAGE_SHIFT; + pgoff_t index = from >> PAGE_SHIFT; int offset = from & (PAGE_SIZE-1); int cpylen; @@ -137,7 +137,7 @@ static int _block2mtd_write(struct block2mtd_dev *dev, const u_char *buf, { struct page *page; struct address_space *mapping = dev->blkdev->bd_inode->i_mapping; - int index = to >> PAGE_SHIFT; // page index + pgoff_t index = to >> PAGE_SHIFT; // page index int offset = to & ~PAGE_MASK; // page offset int cpylen; |