From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Senna Tschudin Date: Sat, 31 May 2014 13:14:05 +0000 Subject: [PATCH 5/11] drivers/scsi/bfa/bfad_bsg.c: Remove useless return variables Message-Id: <1401542051-3174-5-git-send-email-peter.senna@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Anil Gurumurthy Cc: kernel-janitors@vger.kernel.org, Sudarsana Kalluru , "James E.J. Bottomley" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org This patch remove variables that are initialized with a constant, are never updated, and are only used as parameter of return. Return the constant instead of using a variable. Verified by compilation only. The coccinelle script that find and fixes this issue is: // @@ type T; constant C; identifier ret; @@ - T ret = C; ... when != ret when strict return - ret + C ; // Signed-off-by: Peter Senna Tschudin --- drivers/scsi/bfa/bfad_bsg.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c index 8994fb8..a6ee1cf 100644 --- a/drivers/scsi/bfa/bfad_bsg.c +++ b/drivers/scsi/bfa/bfad_bsg.c @@ -26,7 +26,6 @@ int bfad_iocmd_ioc_enable(struct bfad_s *bfad, void *cmd) { struct bfa_bsg_gen_s *iocmd = (struct bfa_bsg_gen_s *)cmd; - int rc = 0; unsigned long flags; spin_lock_irqsave(&bfad->bfad_lock, flags); @@ -34,7 +33,7 @@ bfad_iocmd_ioc_enable(struct bfad_s *bfad, void *cmd) if (!bfa_ioc_is_disabled(&bfad->bfa.ioc)) { spin_unlock_irqrestore(&bfad->bfad_lock, flags); iocmd->status = BFA_STATUS_OK; - return rc; + return 0; } init_completion(&bfad->enable_comp); @@ -43,21 +42,20 @@ bfad_iocmd_ioc_enable(struct bfad_s *bfad, void *cmd) spin_unlock_irqrestore(&bfad->bfad_lock, flags); wait_for_completion(&bfad->enable_comp); - return rc; + return 0; } int bfad_iocmd_ioc_disable(struct bfad_s *bfad, void *cmd) { struct bfa_bsg_gen_s *iocmd = (struct bfa_bsg_gen_s *)cmd; - int rc = 0; unsigned long flags; spin_lock_irqsave(&bfad->bfad_lock, flags); if (bfa_ioc_is_disabled(&bfad->bfa.ioc)) { spin_unlock_irqrestore(&bfad->bfad_lock, flags); iocmd->status = BFA_STATUS_OK; - return rc; + return 0; } if (bfad->disable_active) { @@ -74,7 +72,7 @@ bfad_iocmd_ioc_disable(struct bfad_s *bfad, void *cmd) bfad->disable_active = BFA_FALSE; iocmd->status = BFA_STATUS_OK; - return rc; + return 0; } static int