V4L/DVB: drivers/media: Use memdup_user

[pandora-kernel.git] / drivers / media / video / dabusb.c

diff --git a/drivers/media/video/dabusb.c b/drivers/media/video/dabusb.c
index 0f50508..5b176bd 100644 (file)
--- a/drivers/media/video/dabusb.c
+++ b/drivers/media/video/dabusb.c
@@ -706,16 +706,11 @@ static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg
        switch (cmd) {
 
        case IOCTL_DAB_BULK:
-               pbulk = kmalloc(sizeof (bulk_transfer_t), GFP_KERNEL);
+               pbulk = memdup_user((void __user *)arg,
+                                   sizeof(bulk_transfer_t));
 
-               if (!pbulk) {
-                       ret = -ENOMEM;
-                       break;
-               }
-
-               if (copy_from_user (pbulk, (void __user *) arg, sizeof (bulk_transfer_t))) {
-                       ret = -EFAULT;
-                       kfree (pbulk);
+               if (IS_ERR(pbulk)) {
+                       ret = PTR_ERR(pbulk);
                        break;
                }