From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> Date: Sat, 20 May 2017 15:50:30 +0200 Omit seven extra messages for memory allocation failures in these functions. This issue was detected by using the Coccinelle software. Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> --- drivers/vhost/scsi.c | 24 +++++++----------------- 1 file changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 650533916c19..49d07950e2e5 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -417,5 +417,4 @@ vhost_scsi_allocate_evt(struct vhost_scsi *vs, if (!evt) { - vq_err(vq, "Failed to allocate vhost_scsi_evt\n"); vs->vs_events_missed = true; return NULL; } @@ -1722,21 +1721,15 @@ static int vhost_scsi_nexus_cb(struct se_portal_group *se_tpg, - if (!tv_cmd->tvc_sgl) { - pr_err("Unable to allocate tv_cmd->tvc_sgl\n"); + if (!tv_cmd->tvc_sgl) goto out; - } tv_cmd->tvc_upages = kzalloc(sizeof(struct page *) * VHOST_SCSI_PREALLOC_UPAGES, GFP_KERNEL); - if (!tv_cmd->tvc_upages) { - pr_err("Unable to allocate tv_cmd->tvc_upages\n"); + if (!tv_cmd->tvc_upages) goto out; - } tv_cmd->tvc_prot_sgl = kzalloc(sizeof(struct scatterlist) * VHOST_SCSI_PREALLOC_PROT_SGLS, GFP_KERNEL); - if (!tv_cmd->tvc_prot_sgl) { - pr_err("Unable to allocate tv_cmd->tvc_prot_sgl\n"); + if (!tv_cmd->tvc_prot_sgl) goto out; - } } return 0; out: @@ -1760,6 +1753,5 @@ static int vhost_scsi_make_nexus(struct vhost_scsi_tpg *tpg, if (!tv_nexus) { mutex_unlock(&tpg->tv_tpg_mutex); - pr_err("Unable to allocate struct vhost_scsi_nexus\n"); return -ENOMEM; } /* @@ -1961,7 +1953,6 @@ vhost_scsi_make_tpg(struct se_wwn *wwn, - if (!tpg) { - pr_err("Unable to allocate struct vhost_scsi_tpg"); + if (!tpg) return ERR_PTR(-ENOMEM); - } + mutex_init(&tpg->tv_tpg_mutex); INIT_LIST_HEAD(&tpg->tv_tpg_list); tpg->tport = tport; @@ -2015,7 +2006,6 @@ vhost_scsi_make_tport(struct target_fabric_configfs *tf, - if (!tport) { - pr_err("Unable to allocate struct vhost_scsi_tport"); + if (!tport) return ERR_PTR(-ENOMEM); - } + tport->tport_wwpn = wwpn; /* * Determine the emulated Protocol Identifier and Target Port Name -- 2.13.0
