[PATCH] aic7xxx: replace kmalloc/memset by kzalloc

From: Michael Opdenacker
Date: Thu Oct 16 2014 - 15:14:57 EST


This replaces kmalloc + memset by a call to kzalloc.

This also fixes one checkpatch.pl issue in the process.

This improvement was suggested by "make coccicheck"

Signed-off-by: Michael Opdenacker <michael.opdenacker@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/aic7xxx/aic79xx_core.c | 3 +--
drivers/scsi/aic7xxx/aic79xx_osm.c | 3 +--
drivers/scsi/aic7xxx/aic7xxx_core.c | 10 ++++------
drivers/scsi/aic7xxx/aic7xxx_osm.c | 3 +--
4 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 0bcacf71aef8..9ce383c884c0 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -10437,14 +10437,13 @@ ahd_handle_en_lun(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
return;
}
}
- lstate = kmalloc(sizeof(*lstate), GFP_ATOMIC);
+ lstate = kzalloc(sizeof(*lstate), GFP_ATOMIC);
if (lstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate lstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
- memset(lstate, 0, sizeof(*lstate));
status = xpt_create_path(&lstate->path, /*periph*/NULL,
xpt_path_path_id(ccb->ccb_h.path),
xpt_path_target_id(ccb->ccb_h.path),
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index ed333669a7dc..67a01e804195 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1325,10 +1325,9 @@ int
ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
{
ahd->platform_data =
- kmalloc(sizeof(struct ahd_platform_data), GFP_ATOMIC);
+ kzalloc(sizeof(struct ahd_platform_data), GFP_ATOMIC);
if (ahd->platform_data == NULL)
return (ENOMEM);
- memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data));
ahd->platform_data->irq = AHD_LINUX_NOIRQ;
ahd_lockinit(ahd);
ahd->seltime = (aic79xx_seltime & 0x3) << 4;
diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c
index 10172a3af1b9..c4829d84b335 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_core.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_core.c
@@ -4464,10 +4464,9 @@ ahc_softc_init(struct ahc_softc *ahc)
ahc->pause = ahc->unpause | PAUSE;
/* XXX The shared scb data stuff should be deprecated */
if (ahc->scb_data == NULL) {
- ahc->scb_data = kmalloc(sizeof(*ahc->scb_data), GFP_ATOMIC);
+ ahc->scb_data = kzalloc(sizeof(*ahc->scb_data), GFP_ATOMIC);
if (ahc->scb_data == NULL)
return (ENOMEM);
- memset(ahc->scb_data, 0, sizeof(*ahc->scb_data));
}

return (0);
@@ -4780,10 +4779,10 @@ ahc_init_scbdata(struct ahc_softc *ahc)
SLIST_INIT(&scb_data->sg_maps);

/* Allocate SCB resources */
- scb_data->scbarray = kmalloc(sizeof(struct scb) * AHC_SCB_MAX_ALLOC, GFP_ATOMIC);
+ scb_data->scbarray = kzalloc(sizeof(struct scb) * AHC_SCB_MAX_ALLOC,
+ GFP_ATOMIC);
if (scb_data->scbarray == NULL)
return (ENOMEM);
- memset(scb_data->scbarray, 0, sizeof(struct scb) * AHC_SCB_MAX_ALLOC);

/* Determine the number of hardware SCBs and initialize them */

@@ -7558,14 +7557,13 @@ ahc_handle_en_lun(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
return;
}
}
- lstate = kmalloc(sizeof(*lstate), GFP_ATOMIC);
+ lstate = kzalloc(sizeof(*lstate), GFP_ATOMIC);
if (lstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate lstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
- memset(lstate, 0, sizeof(*lstate));
status = xpt_create_path(&lstate->path, /*periph*/NULL,
xpt_path_path_id(ccb->ccb_h.path),
xpt_path_target_id(ccb->ccb_h.path),
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index d2c9bf39033d..350701407ecd 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1213,10 +1213,9 @@ ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
{

ahc->platform_data =
- kmalloc(sizeof(struct ahc_platform_data), GFP_ATOMIC);
+ kzalloc(sizeof(struct ahc_platform_data), GFP_ATOMIC);
if (ahc->platform_data == NULL)
return (ENOMEM);
- memset(ahc->platform_data, 0, sizeof(struct ahc_platform_data));
ahc->platform_data->irq = AHC_LINUX_NOIRQ;
ahc_lockinit(ahc);
ahc->seltime = (aic7xxx_seltime & 0x3) << 4;
--
1.9.1

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