[PATCH 1/6] target: tcm_loop: Delete an error message for a failed memory allocation in four functions

From: SF Markus Elfring
Date: Mon Dec 11 2017 - 05:42:26 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 10 Dec 2017 21:18:15 +0100

Omit an extra message for a memory allocation failure in these functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/target/loopback/tcm_loop.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index b6a913e38b30..6bd58a064924 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -184,7 +184,6 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc)

tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_ATOMIC);
if (!tl_cmd) {
- pr_err("Unable to allocate struct tcm_loop_cmd\n");
set_host_byte(sc, DID_ERROR);
sc->scsi_done(sc);
return 0;
@@ -221,10 +220,8 @@ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
}

tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL);
- if (!tl_cmd) {
- pr_err("Unable to allocate memory for tl_cmd\n");
+ if (!tl_cmd)
return ret;
- }

init_completion(&tl_cmd->tmr_done);

@@ -773,10 +770,8 @@ static int tcm_loop_make_nexus(
}

tl_nexus = kzalloc(sizeof(struct tcm_loop_nexus), GFP_KERNEL);
- if (!tl_nexus) {
- pr_err("Unable to allocate struct tcm_loop_nexus\n");
+ if (!tl_nexus)
return -ENOMEM;
- }

tl_nexus->se_sess = target_alloc_session(&tl_tpg->tl_se_tpg, 0, 0,
TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS,
@@ -1082,10 +1077,9 @@ static struct se_wwn *tcm_loop_make_scsi_hba(
int ret, off = 0;

tl_hba = kzalloc(sizeof(struct tcm_loop_hba), GFP_KERNEL);
- if (!tl_hba) {
- pr_err("Unable to allocate struct tcm_loop_hba\n");
+ if (!tl_hba)
return ERR_PTR(-ENOMEM);
- }
+
/*
* Determine the emulated Protocol Identifier and Target Port Name
* based on the incoming configfs directory name.
--
2.15.1