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authorJesper Juhl <juhl-lkml@dif.dk>2005-04-18 17:39:33 -0700
committerGreg K-H <gregkh@suse.de>2005-04-18 17:39:33 -0700
commit6fd19f4b55f7fd1c9d8650bd7f8df2c81b69c5ca (patch)
tree273f17ca46a177cc9c33d3022dfb1528c3d542b9 /drivers/usb
parentacbb36f116243bed515357264ecbb6ff9c6d2a5b (diff)
[PATCH] usb: kfree() cleanups in drivers/usb/core/devio.c
Checking for NULL before calling kfree() is redundant. This patch removes these redundant checks and also makes a few tiny whitespace changes. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/core/devio.c32
1 files changed, 12 insertions, 20 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 923e5185c03..6bfab4bcaa9 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -213,12 +213,10 @@ static struct async *alloc_async(unsigned int numisoframes)
static void free_async(struct async *as)
{
- if (as->urb->transfer_buffer)
- kfree(as->urb->transfer_buffer);
- if (as->urb->setup_packet)
- kfree(as->urb->setup_packet);
+ kfree(as->urb->transfer_buffer);
+ kfree(as->urb->setup_packet);
usb_free_urb(as->urb);
- kfree(as);
+ kfree(as);
}
static inline void async_newpending(struct async *as)
@@ -938,17 +936,13 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
return -EINVAL;
}
if (!(as = alloc_async(uurb->number_of_packets))) {
- if (isopkt)
- kfree(isopkt);
- if (dr)
- kfree(dr);
+ kfree(isopkt);
+ kfree(dr);
return -ENOMEM;
}
if (!(as->urb->transfer_buffer = kmalloc(uurb->buffer_length, GFP_KERNEL))) {
- if (isopkt)
- kfree(isopkt);
- if (dr)
- kfree(dr);
+ kfree(isopkt);
+ kfree(dr);
free_async(as);
return -ENOMEM;
}
@@ -967,8 +961,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
as->urb->iso_frame_desc[u].length = isopkt[u].length;
totlen += isopkt[u].length;
}
- if (isopkt)
- kfree(isopkt);
+ kfree(isopkt);
as->ps = ps;
as->userurb = arg;
if (uurb->endpoint & USB_DIR_IN)
@@ -1237,7 +1230,7 @@ static int proc_ioctl (struct dev_state *ps, void __user *arg)
return -ENOMEM;
if ((_IOC_DIR(ctrl.ioctl_code) & _IOC_WRITE)) {
if (copy_from_user (buf, ctrl.data, size)) {
- kfree (buf);
+ kfree(buf);
return -EFAULT;
}
} else {
@@ -1246,8 +1239,7 @@ static int proc_ioctl (struct dev_state *ps, void __user *arg)
}
if (!connected(ps->dev)) {
- if (buf)
- kfree(buf);
+ kfree(buf);
return -ENODEV;
}
@@ -1309,8 +1301,8 @@ static int proc_ioctl (struct dev_state *ps, void __user *arg)
&& size > 0
&& copy_to_user (ctrl.data, buf, size) != 0)
retval = -EFAULT;
- if (buf != NULL)
- kfree (buf);
+
+ kfree(buf);
return retval;
}