relay: use kvcalloc to alloc page array in relay_alloc_page_array
authorwuchi <wuchi.zero@gmail.com>
Fri, 9 Sep 2022 10:10:25 +0000 (18:10 +0800)
committerAndrew Morton <akpm@linux-foundation.org>
Mon, 3 Oct 2022 21:21:43 +0000 (14:21 -0700)
commit83d87a4ddb3b4a42bb73b314b3d1acc3965a689f
tree408c35f2e47ba087912851ed3238b354ac584902
parent7ec354baa2ad6dcf1b481a5a582293cec0eb2a67
relay: use kvcalloc to alloc page array in relay_alloc_page_array

kvcalloc() is safer because it will check the integer overflows, and using
it will simple the logic of allocation size.

Link: https://lkml.kernel.org/r/20220909101025.82955-1-wuchi.zero@gmail.com
Signed-off-by: wuchi <wuchi.zero@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
kernel/relay.c