From 0a1ef3b5a765a6f20e7b8caf295aad3276243966 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 24 Oct 2005 15:38:24 -0400 Subject: [PATCH] [PATCH] usbcore: Use kzalloc instead of kmalloc/memset This patch (as590) fixes up all the remaining places where usbcore can use kzalloc rather than kmalloc/memset. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/config.c | 12 ++++-------- drivers/usb/core/devio.c | 4 ++-- drivers/usb/core/hcd.c | 3 +-- drivers/usb/core/hub.c | 4 +--- drivers/usb/core/message.c | 3 +-- drivers/usb/core/usb.c | 4 +--- 6 files changed, 10 insertions(+), 20 deletions(-) diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 99595e0..63f374e 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -188,10 +188,9 @@ static int usb_parse_interface(struct device *ddev, int cfgno, } len = sizeof(struct usb_host_endpoint) * num_ep; - alt->endpoint = kmalloc(len, GFP_KERNEL); + alt->endpoint = kzalloc(len, GFP_KERNEL); if (!alt->endpoint) return -ENOMEM; - memset(alt->endpoint, 0, len); /* Parse all the endpoint descriptors */ n = 0; @@ -353,10 +352,9 @@ static int usb_parse_configuration(struct device *ddev, int cfgidx, } len = sizeof(*intfc) + sizeof(struct usb_host_interface) * j; - config->intf_cache[i] = intfc = kmalloc(len, GFP_KERNEL); + config->intf_cache[i] = intfc = kzalloc(len, GFP_KERNEL); if (!intfc) return -ENOMEM; - memset(intfc, 0, len); kref_init(&intfc->ref); } @@ -459,16 +457,14 @@ int usb_get_configuration(struct usb_device *dev) } length = ncfg * sizeof(struct usb_host_config); - dev->config = kmalloc(length, GFP_KERNEL); + dev->config = kzalloc(length, GFP_KERNEL); if (!dev->config) goto err2; - memset(dev->config, 0, length); length = ncfg * sizeof(char *); - dev->rawdescriptors = kmalloc(length, GFP_KERNEL); + dev->rawdescriptors = kzalloc(length, GFP_KERNEL); if (!dev->rawdescriptors) goto err2; - memset(dev->rawdescriptors, 0, length); buffer = kmalloc(USB_DT_CONFIG_SIZE, GFP_KERNEL); if (!buffer) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index ffb2e24..942cd43 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -210,10 +210,10 @@ err: static struct async *alloc_async(unsigned int numisoframes) { unsigned int assize = sizeof(struct async) + numisoframes * sizeof(struct usb_iso_packet_descriptor); - struct async *as = kmalloc(assize, GFP_KERNEL); + struct async *as = kzalloc(assize, GFP_KERNEL); + if (!as) return NULL; - memset(as, 0, assize); as->urb = usb_alloc_urb(numisoframes, GFP_KERNEL); if (!as->urb) { kfree(as); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index e8f2b8d..61ef994 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -744,10 +744,9 @@ struct usb_bus *usb_alloc_bus (struct usb_operations *op) { struct usb_bus *bus; - bus = kmalloc (sizeof *bus, GFP_KERNEL); + bus = kzalloc (sizeof *bus, GFP_KERNEL); if (!bus) return NULL; - memset(bus, 0, sizeof(struct usb_bus)); usb_bus_init (bus); bus->op = op; return bus; diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 6a2ebd8..8ba5854 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -865,14 +865,12 @@ descriptor_error: /* We found a hub */ dev_info (&intf->dev, "USB hub found\n"); - hub = kmalloc(sizeof(*hub), GFP_KERNEL); + hub = kzalloc(sizeof(*hub), GFP_KERNEL); if (!hub) { dev_dbg (&intf->dev, "couldn't kmalloc hub struct\n"); return -ENOMEM; } - memset(hub, 0, sizeof(*hub)); - INIT_LIST_HEAD(&hub->event_list); hub->intfdev = &intf->dev; hub->hdev = hdev; diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 5ad0d5e..3519f31 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1350,7 +1350,7 @@ int usb_set_configuration(struct usb_device *dev, int configuration) } for (; n < nintf; ++n) { - new_interfaces[n] = kmalloc( + new_interfaces[n] = kzalloc( sizeof(struct usb_interface), GFP_KERNEL); if (!new_interfaces[n]) { @@ -1391,7 +1391,6 @@ free_interfaces: struct usb_host_interface *alt; cp->interface[i] = intf = new_interfaces[i]; - memset(intf, 0, sizeof(*intf)); intfc = cp->intf_cache[i]; intf->altsetting = intfc->altsetting; intf->num_altsetting = intfc->num_altsetting; diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 4eca490..0eefff7 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -704,12 +704,10 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) { struct usb_device *dev; - dev = kmalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) return NULL; - memset(dev, 0, sizeof(*dev)); - bus = usb_bus_get(bus); if (!bus) { kfree(dev); -- 2.7.4