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bdev/raid: add additional NULL check for data iovec

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iSCSI application may set the data iovec to NULL for READ requests.

Change-Id: Ic6b73f62f75dc2d927c18219fa1c2cb242f0528e
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457079
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
This commit is contained in:
Changpeng Liu 2019-06-05 20:58:28 -04:00 committed by Darek Stojaczyk
parent 95ace66f8d
commit 69db40f677
1 changed files with 1 additions and 1 deletions
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2
lib/bdev/raid/bdev_raid.c
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@ -831,7 +831,7 @@ raid_bdev_submit_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_i
{ {
switch (bdev_io->type) { switch (bdev_io->type) {
case SPDK_BDEV_IO_TYPE_READ: case SPDK_BDEV_IO_TYPE_READ:
if (bdev_io->u.bdev.iovs[0].iov_base == NULL) { if (bdev_io->u.bdev.iovs == NULL || bdev_io->u.bdev.iovs[0].iov_base == NULL) {
spdk_bdev_io_get_buf(bdev_io, raid_bdev_get_buf_cb, spdk_bdev_io_get_buf(bdev_io, raid_bdev_get_buf_cb,
bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen); bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen);
} else { } else {