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path: root/drivers/usb/misc/auerswald.c
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Diffstat (limited to 'drivers/usb/misc/auerswald.c')
-rw-r--r--drivers/usb/misc/auerswald.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index e4971d6aaaf..b5332e679c4 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -704,9 +704,7 @@ static void auerbuf_free (pauerbuf_t bp)
{
kfree(bp->bufp);
kfree(bp->dr);
- if (bp->urbp) {
- usb_free_urb(bp->urbp);
- }
+ usb_free_urb(bp->urbp);
kfree(bp);
}
@@ -768,7 +766,7 @@ static int auerbuf_setup (pauerbufctl_t bcp, unsigned int numElements, unsigned
bep->bufp = kmalloc (bufsize, GFP_KERNEL);
if (!bep->bufp)
goto bl_fail;
- bep->dr = (struct usb_ctrlrequest *) kmalloc (sizeof (struct usb_ctrlrequest), GFP_KERNEL);
+ bep->dr = kmalloc(sizeof (struct usb_ctrlrequest), GFP_KERNEL);
if (!bep->dr)
goto bl_fail;
bep->urbp = usb_alloc_urb (0, GFP_KERNEL);
@@ -1155,8 +1153,7 @@ static void auerswald_int_release (pauerswald_t cp)
dbg ("auerswald_int_release");
/* stop the int endpoint */
- if (cp->inturbp)
- usb_kill_urb (cp->inturbp);
+ usb_kill_urb (cp->inturbp);
/* deallocate memory */
auerswald_int_free (cp);
@@ -1379,7 +1376,7 @@ static int auerchar_open (struct inode *inode, struct file *file)
}
/* we have access to the device. Now lets allocate memory */
- ccp = (pauerchar_t) kmalloc(sizeof(auerchar_t), GFP_KERNEL);
+ ccp = kzalloc(sizeof(auerchar_t), GFP_KERNEL);
if (ccp == NULL) {
err ("out of memory");
ret = -ENOMEM;
@@ -1387,7 +1384,6 @@ static int auerchar_open (struct inode *inode, struct file *file)
}
/* Initialize device descriptor */
- memset( ccp, 0, sizeof(auerchar_t));
init_MUTEX( &ccp->mutex);
init_MUTEX( &ccp->readmutex);
auerbuf_init (&ccp->bufctl);
@@ -1915,14 +1911,13 @@ static int auerswald_probe (struct usb_interface *intf,
return -ENODEV;
/* allocate memory for our device and initialize it */
- cp = kmalloc (sizeof(auerswald_t), GFP_KERNEL);
+ cp = kzalloc (sizeof(auerswald_t), GFP_KERNEL);
if (cp == NULL) {
err ("out of memory");
goto pfail;
}
/* Initialize device descriptor */
- memset (cp, 0, sizeof(auerswald_t));
init_MUTEX (&cp->mutex);
cp->usbdev = usbdev;
auerchain_init (&cp->controlchain);
@@ -1972,7 +1967,7 @@ static int auerswald_probe (struct usb_interface *intf,
info("device is a %s", cp->dev_desc);
/* get the maximum allowed control transfer length */
- pbuf = (__le16 *) kmalloc (2, GFP_KERNEL); /* use an allocated buffer because of urb target */
+ pbuf = kmalloc(2, GFP_KERNEL); /* use an allocated buffer because of urb target */
if (!pbuf) {
err( "out of memory");
goto pfail;