From c3917a04843fa38d9e3926e7508813e115d3df78 Mon Sep 17 00:00:00 2001 From: Liu Song Date: Fri, 29 Nov 2019 22:33:52 +0800 Subject: mtd: block2mtd: page index should use pgoff_t Page index use pgoff_t to prevent risk of truncation. Signed-off-by: Liu Song Signed-off-by: Miquel Raynal --- drivers/mtd/devices/block2mtd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/mtd') 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; -- cgit v1.2.3