From dd00cc486ab1c17049a535413d1751ef3482141c Mon Sep 17 00:00:00 2001 From: Yoann Padioleau Date: Thu, 19 Jul 2007 01:49:03 -0700 Subject: some kmalloc/memset ->kzalloc (tree wide) Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau Cc: Richard Henderson Cc: Ivan Kokshaysky Acked-by: Russell King Cc: Bryan Wu Acked-by: Jiri Slaby Cc: Dave Airlie Acked-by: Roland Dreier Cc: Jiri Kosina Acked-by: Dmitry Torokhov Cc: Benjamin Herrenschmidt Acked-by: Mauro Carvalho Chehab Acked-by: Pierre Ossman Cc: Jeff Garzik Cc: "David S. Miller" Acked-by: Greg KH Cc: James Bottomley Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/net/wan/c101.c | 3 +-- drivers/net/wan/cosa.c | 4 +--- drivers/net/wan/cycx_main.c | 4 +--- drivers/net/wan/cycx_x25.c | 3 +-- drivers/net/wan/dscc4.c | 6 ++---- drivers/net/wan/farsync.c | 3 +-- drivers/net/wan/hostess_sv11.c | 3 +-- drivers/net/wan/n2.c | 3 +-- drivers/net/wan/pc300_drv.c | 3 +-- drivers/net/wan/pc300too.c | 3 +-- drivers/net/wan/pci200syn.c | 3 +-- drivers/net/wan/sdla.c | 3 +-- drivers/net/wan/sealevel.c | 3 +-- drivers/net/wan/wanxl.c | 3 +-- drivers/net/wan/x25_asy.c | 4 +--- 15 files changed, 16 insertions(+), 35 deletions(-) (limited to 'drivers/net/wan') diff --git a/drivers/net/wan/c101.c b/drivers/net/wan/c101.c index 6b63b350cd52..8ead774d14c8 100644 --- a/drivers/net/wan/c101.c +++ b/drivers/net/wan/c101.c @@ -315,12 +315,11 @@ static int __init c101_run(unsigned long irq, unsigned long winbase) return -ENODEV; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "c101: unable to allocate memory\n"); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); card->dev = alloc_hdlcdev(card); if (!card->dev) { diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index 9ef49ce148b2..26058b4f8f36 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -572,13 +572,11 @@ static int cosa_probe(int base, int irq, int dma) sprintf(cosa->name, "cosa%d", cosa->num); /* Initialize the per-channel data */ - cosa->chan = kmalloc(sizeof(struct channel_data)*cosa->nchannels, - GFP_KERNEL); + cosa->chan = kcalloc(cosa->nchannels, sizeof(struct channel_data), GFP_KERNEL); if (!cosa->chan) { err = -ENOMEM; goto err_out3; } - memset(cosa->chan, 0, sizeof(struct channel_data)*cosa->nchannels); for (i=0; inchannels; i++) { cosa->chan[i].cosa = cosa; cosa->chan[i].num = i; diff --git a/drivers/net/wan/cycx_main.c b/drivers/net/wan/cycx_main.c index 6e5f1c898517..a0e8611ad8e8 100644 --- a/drivers/net/wan/cycx_main.c +++ b/drivers/net/wan/cycx_main.c @@ -113,12 +113,10 @@ static int __init cycx_init(void) /* Verify number of cards and allocate adapter data space */ cycx_ncards = min_t(int, cycx_ncards, CYCX_MAX_CARDS); cycx_ncards = max_t(int, cycx_ncards, 1); - cycx_card_array = kmalloc(sizeof(struct cycx_device) * cycx_ncards, - GFP_KERNEL); + cycx_card_array = kcalloc(cycx_ncards, sizeof(struct cycx_device), GFP_KERNEL); if (!cycx_card_array) goto out; - memset(cycx_card_array, 0, sizeof(struct cycx_device) * cycx_ncards); /* Register adapters with WAN router */ for (cnt = 0; cnt < cycx_ncards; ++cnt) { diff --git a/drivers/net/wan/cycx_x25.c b/drivers/net/wan/cycx_x25.c index 016b3ff3ea5e..a8af28b273d3 100644 --- a/drivers/net/wan/cycx_x25.c +++ b/drivers/net/wan/cycx_x25.c @@ -376,11 +376,10 @@ static int cycx_wan_new_if(struct wan_device *wandev, struct net_device *dev, } /* allocate and initialize private data */ - chan = kmalloc(sizeof(struct cycx_x25_channel), GFP_KERNEL); + chan = kzalloc(sizeof(struct cycx_x25_channel), GFP_KERNEL); if (!chan) return -ENOMEM; - memset(chan, 0, sizeof(*chan)); strcpy(chan->name, conf->name); chan->card = card; chan->link = conf->port; diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c index dca024471455..50d2f9108dca 100644 --- a/drivers/net/wan/dscc4.c +++ b/drivers/net/wan/dscc4.c @@ -890,12 +890,11 @@ static int dscc4_found1(struct pci_dev *pdev, void __iomem *ioaddr) struct dscc4_dev_priv *root; int i, ret = -ENOMEM; - root = kmalloc(dev_per_card*sizeof(*root), GFP_KERNEL); + root = kcalloc(dev_per_card, sizeof(*root), GFP_KERNEL); if (!root) { printk(KERN_ERR "%s: can't allocate data\n", DRV_NAME); goto err_out; } - memset(root, 0, dev_per_card*sizeof(*root)); for (i = 0; i < dev_per_card; i++) { root[i].dev = alloc_hdlcdev(root + i); @@ -903,12 +902,11 @@ static int dscc4_found1(struct pci_dev *pdev, void __iomem *ioaddr) goto err_free_dev; } - ppriv = kmalloc(sizeof(*ppriv), GFP_KERNEL); + ppriv = kzalloc(sizeof(*ppriv), GFP_KERNEL); if (!ppriv) { printk(KERN_ERR "%s: can't allocate private data\n", DRV_NAME); goto err_free_dev; } - memset(ppriv, 0, sizeof(struct dscc4_pci_priv)); ppriv->root = root; spin_lock_init(&ppriv->lock); diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c index 58a53b6d9b42..12dae8e24844 100644 --- a/drivers/net/wan/farsync.c +++ b/drivers/net/wan/farsync.c @@ -2476,13 +2476,12 @@ fst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent) } /* Allocate driver private data */ - card = kmalloc(sizeof (struct fst_card_info), GFP_KERNEL); + card = kzalloc(sizeof (struct fst_card_info), GFP_KERNEL); if (card == NULL) { printk_err("FarSync card found but insufficient memory for" " driver storage\n"); return -ENOMEM; } - memset(card, 0, sizeof (struct fst_card_info)); /* Try to enable the device */ if ((err = pci_enable_device(pdev)) != 0) { diff --git a/drivers/net/wan/hostess_sv11.c b/drivers/net/wan/hostess_sv11.c index 9ba3e4ee6ec7..bf5f8d9b5c83 100644 --- a/drivers/net/wan/hostess_sv11.c +++ b/drivers/net/wan/hostess_sv11.c @@ -231,11 +231,10 @@ static struct sv11_device *sv11_init(int iobase, int irq) return NULL; } - sv = kmalloc(sizeof(struct sv11_device), GFP_KERNEL); + sv = kzalloc(sizeof(struct sv11_device), GFP_KERNEL); if(!sv) goto fail3; - memset(sv, 0, sizeof(*sv)); sv->if_ptr=&sv->netdev; sv->netdev.dev = alloc_netdev(0, "hdlc%d", sv11_setup); diff --git a/drivers/net/wan/n2.c b/drivers/net/wan/n2.c index 5c322dfb79f6..cbdf0b748bde 100644 --- a/drivers/net/wan/n2.c +++ b/drivers/net/wan/n2.c @@ -351,12 +351,11 @@ static int __init n2_run(unsigned long io, unsigned long irq, return -ENODEV; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "n2: unable to allocate memory\n"); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); card->ports[0].dev = alloc_hdlcdev(&card->ports[0]); card->ports[1].dev = alloc_hdlcdev(&card->ports[1]); diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c index 5d8c78ee2cd9..99fee2f1d019 100644 --- a/drivers/net/wan/pc300_drv.c +++ b/drivers/net/wan/pc300_drv.c @@ -3456,7 +3456,7 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if ((err = pci_enable_device(pdev)) < 0) return err; - card = kmalloc(sizeof(pc300_t), GFP_KERNEL); + card = kzalloc(sizeof(pc300_t), GFP_KERNEL); if (card == NULL) { printk("PC300 found at RAM 0x%016llx, " "but could not allocate card structure.\n", @@ -3464,7 +3464,6 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) err = -ENOMEM; goto err_disable_dev; } - memset(card, 0, sizeof(pc300_t)); err = -ENODEV; diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c index dfbd3b00f03b..6353cb5c658d 100644 --- a/drivers/net/wan/pc300too.c +++ b/drivers/net/wan/pc300too.c @@ -334,14 +334,13 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev, return i; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "pc300: unable to allocate memory\n"); pci_release_regions(pdev); pci_disable_device(pdev); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); pci_set_drvdata(pdev, card); if (pdev->device == PCI_DEVICE_ID_PC300_TE_1 || diff --git a/drivers/net/wan/pci200syn.c b/drivers/net/wan/pci200syn.c index 7f720de2e9f0..092e51d89036 100644 --- a/drivers/net/wan/pci200syn.c +++ b/drivers/net/wan/pci200syn.c @@ -312,14 +312,13 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev, return i; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "pci200syn: unable to allocate memory\n"); pci_release_regions(pdev); pci_disable_device(pdev); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); pci_set_drvdata(pdev, card); card->ports[0].dev = alloc_hdlcdev(&card->ports[0]); card->ports[1].dev = alloc_hdlcdev(&card->ports[1]); diff --git a/drivers/net/wan/sdla.c b/drivers/net/wan/sdla.c index 6a485f0556f4..792e588d7d61 100644 --- a/drivers/net/wan/sdla.c +++ b/drivers/net/wan/sdla.c @@ -1196,10 +1196,9 @@ static int sdla_xfer(struct net_device *dev, struct sdla_mem __user *info, int r if (read) { - temp = kmalloc(mem.len, GFP_KERNEL); + temp = kzalloc(mem.len, GFP_KERNEL); if (!temp) return(-ENOMEM); - memset(temp, 0, mem.len); sdla_read(dev, mem.addr, temp, mem.len); if(copy_to_user(mem.data, temp, mem.len)) { diff --git a/drivers/net/wan/sealevel.c b/drivers/net/wan/sealevel.c index 131358108c5a..11276bf3149f 100644 --- a/drivers/net/wan/sealevel.c +++ b/drivers/net/wan/sealevel.c @@ -270,11 +270,10 @@ static __init struct slvl_board *slvl_init(int iobase, int irq, return NULL; } - b = kmalloc(sizeof(struct slvl_board), GFP_KERNEL); + b = kzalloc(sizeof(struct slvl_board), GFP_KERNEL); if(!b) goto fail3; - memset(b, 0, sizeof(*b)); if (!(b->dev[0]= slvl_alloc(iobase, irq))) goto fail2; diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c index c73601574334..3c78f9856380 100644 --- a/drivers/net/wan/wanxl.c +++ b/drivers/net/wan/wanxl.c @@ -599,7 +599,7 @@ static int __devinit wanxl_pci_init_one(struct pci_dev *pdev, } alloc_size = sizeof(card_t) + ports * sizeof(port_t); - card = kmalloc(alloc_size, GFP_KERNEL); + card = kzalloc(alloc_size, GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "wanXL %s: unable to allocate memory\n", pci_name(pdev)); @@ -607,7 +607,6 @@ static int __devinit wanxl_pci_init_one(struct pci_dev *pdev, pci_disable_device(pdev); return -ENOBUFS; } - memset(card, 0, alloc_size); pci_set_drvdata(pdev, card); card->pdev = pdev; diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c index 1c9edd97accd..c48b1cc63fd5 100644 --- a/drivers/net/wan/x25_asy.c +++ b/drivers/net/wan/x25_asy.c @@ -786,14 +786,12 @@ static int __init init_x25_asy(void) printk(KERN_INFO "X.25 async: version 0.00 ALPHA " "(dynamic channels, max=%d).\n", x25_asy_maxdev ); - x25_asy_devs = kmalloc(sizeof(struct net_device *)*x25_asy_maxdev, - GFP_KERNEL); + x25_asy_devs = kcalloc(x25_asy_maxdev, sizeof(struct net_device*), GFP_KERNEL); if (!x25_asy_devs) { printk(KERN_WARNING "X25 async: Can't allocate x25_asy_ctrls[] " "array! Uaargh! (-> No X.25 available)\n"); return -ENOMEM; } - memset(x25_asy_devs, 0, sizeof(struct net_device *)*x25_asy_maxdev); return tty_register_ldisc(N_X25, &x25_ldisc); } -- cgit v1.2.3