Staging: bcm: Fix double free of 'pReadData' in IOCTL_BCM_NVM_WRITE.

This patch fixes a memory error in ioctl,
IOCTL_BCM_NVM_WRITE. While copying data to
user space, if an error occurs, pReadData
is freed. Then, at the end of the ioctl,
pReadData was being freed again.
Signed-off-by: NKevin McKinney <klmckinney1@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/bcm/Bcmchar.c

@@ -1336,7 +1336,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 
 			if (copy_to_user(stNVMReadWrite.pBuffer, pReadData, stNVMReadWrite.uiNumBytes)) {
 				kfree(pReadData);
-				Status = -EFAULT;
+				return -EFAULT;
 			}
 		} else {
 			down(&Adapter->NVMRdmWrmLock);