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author | Jesper Juhl <juhl-lkml@dif.dk> | 2005-04-18 17:39:33 -0700 |
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committer | Greg K-H <gregkh@suse.de> | 2005-04-18 17:39:33 -0700 |
commit | 6fd19f4b55f7fd1c9d8650bd7f8df2c81b69c5ca (patch) | |
tree | 273f17ca46a177cc9c33d3022dfb1528c3d542b9 /drivers | |
parent | acbb36f116243bed515357264ecbb6ff9c6d2a5b (diff) | |
download | kernel_samsung_smdk4412-6fd19f4b55f7fd1c9d8650bd7f8df2c81b69c5ca.zip kernel_samsung_smdk4412-6fd19f4b55f7fd1c9d8650bd7f8df2c81b69c5ca.tar.gz kernel_samsung_smdk4412-6fd19f4b55f7fd1c9d8650bd7f8df2c81b69c5ca.tar.bz2 |
[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')
-rw-r--r-- | drivers/usb/core/devio.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 923e518..6bfab4b 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; } |