[PATCH 6.1 680/885] scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmi

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From: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>

commit eeb270aee3e085411399f129fc14fa04bd6d83cf upstream.

In the function mpi3mr_get_all_tgt_info(), devmap_info points to
alltgt_info->dmi then there is no need to memcpy() data from devmap_info to
alltgt_info->dmi. Remove the unnecessary memcpy(). This also allows to
remove the local variable 'rval' and the goto label 'out'.

Link: https://lore.kernel.org/r/20230214005019.1897251-3-shinichiro.kawasaki@xxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Fixes: f5e6d5a34376 ("scsi: mpi3mr: Add support for driver commands")
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
Acked-by: Sathya Prakash Veerichetty <sathya.prakash@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/scsi/mpi3mr/mpi3mr_app.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index 72054e3a26cb..bff637702397 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -293,7 +293,6 @@ static long mpi3mr_bsg_pel_enable(struct mpi3mr_ioc *mrioc,
 static long mpi3mr_get_all_tgt_info(struct mpi3mr_ioc *mrioc,
 	struct bsg_job *job)
 {
-	long rval = -EINVAL;
 	u16 num_devices = 0, i = 0, size;
 	unsigned long flags;
 	struct mpi3mr_tgt_dev *tgtdev;
@@ -304,7 +303,7 @@ static long mpi3mr_get_all_tgt_info(struct mpi3mr_ioc *mrioc,
 	if (job->request_payload.payload_len < sizeof(u32)) {
 		dprint_bsg_err(mrioc, "%s: invalid size argument\n",
 		    __func__);
-		return rval;
+		return -EINVAL;
 	}
 
 	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
@@ -350,20 +349,12 @@ static long mpi3mr_get_all_tgt_info(struct mpi3mr_ioc *mrioc,
 		sizeof(*devmap_info);
 	usr_entrylen *= sizeof(*devmap_info);
 	min_entrylen = min(usr_entrylen, kern_entrylen);
-	if (min_entrylen && (!memcpy(&alltgt_info->dmi, devmap_info, min_entrylen))) {
-		dprint_bsg_err(mrioc, "%s:%d: device map info copy failed\n",
-		    __func__, __LINE__);
-		rval = -EFAULT;
-		goto out;
-	}
 
 	sg_copy_from_buffer(job->request_payload.sg_list,
 			    job->request_payload.sg_cnt,
 			    alltgt_info, (min_entrylen + sizeof(u64)));
-	rval = 0;
-out:
 	kfree(alltgt_info);
-	return rval;
+	return 0;
 }
 /**
  * mpi3mr_get_change_count - Get topology change count
-- 
2.39.2






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