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Date: Wed, 19 Jul 2006 03:15:40 +0200
From: takis@...umba.uhasselt.be (Panagiotis Issaris)
To: linux-kernel@...r.kernel.org
Cc: netdev@...r.kernel.org, nico@....org, patrick@...epenguin.com,
linville@...driver.com, davem@...emloft.net
Subject: [PATCH] Conversions from kmalloc+memset to k(z|c)alloc.
From: Panagiotis Issaris <takis@...aris.org>
Conversions from kmalloc+memset to k(z|c)alloc. The original memsets
did not clear out the entire allocated structure. To my unexperienced
eye, that seemed a bit fishy (or at least a bit weird and inconsistent).
Signed-off-by: Panagiotis Issaris <takis@...aris.org>
---
Applies to current GIT or 2.6.18-rc2. Compile-tested with
make allyesconfig.
drivers/video/pxafb.c | 3 +--
drivers/video/sa1100fb.c | 3 +--
net/decnet/dn_table.c | 4 +---
net/ieee80211/ieee80211_tx.c | 3 +--
net/ipv6/ip6_flowlabel.c | 3 +--
net/sched/sch_atm.c | 3 +--
6 files changed, 6 insertions(+), 13 deletions(-)
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index bbb0710..57931cf 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -1051,11 +1051,10 @@ static struct pxafb_info * __init pxafb_
struct pxafb_mach_info *inf = dev->platform_data;
/* Alloc the pxafb_info and pseudo_palette in one step */
- fbi = kmalloc(sizeof(struct pxafb_info) + sizeof(u32) * 16, GFP_KERNEL);
+ fbi = kzalloc(sizeof(struct pxafb_info) + sizeof(u32) * 16, GFP_KERNEL);
if (!fbi)
return NULL;
- memset(fbi, 0, sizeof(struct pxafb_info));
fbi->dev = dev;
strcpy(fbi->fb.fix.id, PXA_NAME);
diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c
index a2e6e72..fdcc617 100644
--- a/drivers/video/sa1100fb.c
+++ b/drivers/video/sa1100fb.c
@@ -1373,12 +1373,11 @@ static struct sa1100fb_info * __init sa1
struct sa1100fb_mach_info *inf;
struct sa1100fb_info *fbi;
- fbi = kmalloc(sizeof(struct sa1100fb_info) + sizeof(u32) * 16,
+ fbi = kzalloc(sizeof(struct sa1100fb_info) + sizeof(u32) * 16,
GFP_KERNEL);
if (!fbi)
return NULL;
- memset(fbi, 0, sizeof(struct sa1100fb_info));
fbi->dev = dev;
strcpy(fbi->fb.fix.id, SA1100_NAME);
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index e926c95..b104d52 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -759,11 +759,9 @@ struct dn_fib_table *dn_fib_get_table(in
printk(KERN_DEBUG "DECnet: BUG! Attempt to create routing table from interrupt\n");
return NULL;
}
- if ((t = kmalloc(sizeof(struct dn_fib_table) + sizeof(struct dn_hash), GFP_KERNEL)) == NULL)
+ if ((t = kzalloc(sizeof(struct dn_fib_table) + sizeof(struct dn_hash), GFP_KERNEL)) == NULL)
return NULL;
- memset(t, 0, sizeof(struct dn_fib_table));
-
t->n = n;
t->insert = dn_fib_table_insert;
t->delete = dn_fib_table_delete;
diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c
index bf04213..732d13f 100644
--- a/net/ieee80211/ieee80211_tx.c
+++ b/net/ieee80211/ieee80211_tx.c
@@ -192,12 +192,11 @@ static struct ieee80211_txb *ieee80211_a
{
struct ieee80211_txb *txb;
int i;
- txb = kmalloc(sizeof(struct ieee80211_txb) + (sizeof(u8 *) * nr_frags),
+ txb = kzalloc(sizeof(struct ieee80211_txb) + (sizeof(u8 *) * nr_frags),
gfp_mask);
if (!txb)
return NULL;
- memset(txb, 0, sizeof(struct ieee80211_txb));
txb->nr_frags = nr_frags;
txb->frag_size = txb_size;
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 1d672b0..782c33c 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -297,11 +297,10 @@ fl_create(struct in6_flowlabel_req *freq
int junk;
err = -ENOMEM;
- fl->opt = kmalloc(sizeof(*fl->opt) + olen, GFP_KERNEL);
+ fl->opt = kzalloc(sizeof(*fl->opt) + olen, GFP_KERNEL);
if (fl->opt == NULL)
goto done;
- memset(fl->opt, 0, sizeof(*fl->opt));
fl->opt->tot_len = sizeof(*fl->opt) + olen;
err = -EFAULT;
if (copy_from_user(fl->opt+1, optval+CMSG_ALIGN(sizeof(*freq)), olen))
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index dbf44da..75398bb 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -308,13 +308,12 @@ static int atm_tc_change(struct Qdisc *s
}
}
DPRINTK("atm_tc_change: new id %x\n",classid);
- flow = kmalloc(sizeof(struct atm_flow_data)+hdr_len,GFP_KERNEL);
+ flow = kzalloc(sizeof(struct atm_flow_data)+hdr_len,GFP_KERNEL);
DPRINTK("atm_tc_change: flow %p\n",flow);
if (!flow) {
error = -ENOBUFS;
goto err_out;
}
- memset(flow,0,sizeof(*flow));
flow->filter_list = NULL;
if (!(flow->q = qdisc_create_dflt(sch->dev,&pfifo_qdisc_ops)))
flow->q = &noop_qdisc;
--
1.4.1.gd3ba6
--
OpenPGP key: http://lumumba.luc.ac.be/takis/takis_public_key.txt
fingerprint: 6571 13A3 33D9 3726 F728 AA98 F643 B12E ECF3 E029
-
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