From d5641c64c48f4408500a348301bff01fbf2c1ec5 Mon Sep 17 00:00:00 2001 From: Chengguang Xu Date: Mon, 25 Jun 2018 13:30:58 +0800 Subject: [PATCH] PM / hibernate: cast PAGE_SIZE to int when comparing with error code If PAGE_SIZE is unsigned type then negative error code will be larger than PAGE_SIZE. Signed-off-by: Chengguang Xu Signed-off-by: Rafael J. Wysocki --- kernel/power/swap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/power/swap.c b/kernel/power/swap.c index c2bcf97..d7f6c1a 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -923,7 +923,7 @@ int swsusp_write(unsigned int flags) } memset(&snapshot, 0, sizeof(struct snapshot_handle)); error = snapshot_read_next(&snapshot); - if (error < PAGE_SIZE) { + if (error < (int)PAGE_SIZE) { if (error >= 0) error = -EFAULT; @@ -1483,7 +1483,7 @@ int swsusp_read(unsigned int *flags_p) memset(&snapshot, 0, sizeof(struct snapshot_handle)); error = snapshot_write_next(&snapshot); - if (error < PAGE_SIZE) + if (error < (int)PAGE_SIZE) return error < 0 ? error : -EFAULT; header = (struct swsusp_info *)data_of(snapshot); error = get_swap_reader(&handle, flags_p); -- 2.7.4