[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 <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 99595e07b653..63f374e62db2 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)