[v2] scsi: aic7xxx: Use kmemdup instead of duplicating its function
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Message ID 20181206131918.37433-1-wen.yang99@zte.com.cn
State New
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Series
  • [v2] scsi: aic7xxx: Use kmemdup instead of duplicating its function
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Commit Message

Wen Yang Dec. 6, 2018, 1:19 p.m. UTC
kmemdup has implemented the function that kmalloc() + memcpy().
We prefer to kmemdup rather than code opened implementation.

This issue was detected with the help of coccinelle.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
CC: Hannes Reinecke <hare@suse.com>
CC: "James E.J. Bottomley" <jejb@linux.ibm.com>
CC: "Martin K. Petersen" <martin.petersen@oracle.com>
CC: linux-scsi@vger.kernel.org
CC: linux-kernel@vger.kernel.org
---
 drivers/scsi/aic7xxx/aic79xx_core.c | 4 ++--
 drivers/scsi/aic7xxx/aic7xxx_core.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

Patch
diff mbox series

diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 9ee75c9a9aa1..3e72fac6d248 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -9438,10 +9438,10 @@  ahd_loadseq(struct ahd_softc *ahd)
 	if (cs_count != 0) {
 
 		cs_count *= sizeof(struct cs);
-		ahd->critical_sections = kmalloc(cs_count, GFP_ATOMIC);
+		ahd->critical_sections = kmemdup(cs_table, cs_count,
+						GFP_ATOMIC);
 		if (ahd->critical_sections == NULL)
 			panic("ahd_loadseq: Could not malloc");
-		memcpy(ahd->critical_sections, cs_table, cs_count);
 	}
 	ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS|FASTMODE);
 
diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c
index f3362f4ab16e..8ea055a81ee8 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_core.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_core.c
@@ -6901,10 +6901,10 @@  ahc_loadseq(struct ahc_softc *ahc)
 	if (cs_count != 0) {
 
 		cs_count *= sizeof(struct cs);
-		ahc->critical_sections = kmalloc(cs_count, GFP_ATOMIC);
+		ahc->critical_sections = kmemdup(cs_table, cs_count,
+						GFP_ATOMIC);
 		if (ahc->critical_sections == NULL)
 			panic("ahc_loadseq: Could not malloc");
-		memcpy(ahc->critical_sections, cs_table, cs_count);
 	}
 	ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE);