Messages in this thread Patch in this message | | | From | Chengguang Xu <> | Subject | [PATCH] kernel/power: cast PAGE_SIZE to int when comparing with error code | Date | Mon, 25 Jun 2018 13:30:58 +0800 |
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If PAGE_SIZE is unsigned type then negative error code will be larger than PAGE_SIZE.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com> --- 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 c2bcf97d24c8..d7f6c1a288d3 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); -- 2.17.1
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