diff options
| author | Stephen Kitt <steve@sk2.org> | 2020-01-24 23:03:07 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-01-30 07:03:33 +0300 |
| commit | 6a365874a43c43b227492266f59cd68ecc5a6f83 (patch) | |
| tree | 6c1e771042b2d7bbcbb08c61a0baef104ddf8b35 /drivers/block/drbd/drbd_nl.c | |
| parent | a258edbca2d94a4d902daeecb3073c88b57ac7ad (diff) | |
| download | linux-6a365874a43c43b227492266f59cd68ecc5a6f83.tar.xz | |
drbd: fifo_alloc() should use struct_size
Switching to struct_size for the allocation in fifo_alloc avoids
hard-coding the type of fifo_buffer.values in fifo_alloc. It also
provides overflow protection; to avoid pessimistic code being
generated by the compiler as a result, this patch also switches
fifo_size to unsigned, propagating the change as appropriate.
Reviewed-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/drbd/drbd_nl.c')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index de2f94d0103a..da4a3ebe04ef 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1575,7 +1575,8 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info) struct drbd_device *device; struct disk_conf *new_disk_conf, *old_disk_conf; struct fifo_buffer *old_plan = NULL, *new_plan = NULL; - int err, fifo_size; + int err; + unsigned int fifo_size; retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR); if (!adm_ctx.reply_skb) |