usb: misc: iowarrior: don't print on ENOMEM

All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 7defa34..095778f 100644 (file)
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -278,7 +278,7 @@ static ssize_t iowarrior_read(struct file *file, char __user *buffer,
        dev = file->private_data;
 
        /* verify that the device wasn't unplugged */
-       if (dev == NULL || !dev->present)
+       if (!dev || !dev->present)
                return -ENODEV;
 
        dev_dbg(&dev->interface->dev, "minor %d, count = %zd\n",
@@ -480,9 +480,8 @@ static long iowarrior_ioctl(struct file *file, unsigned int cmd,
        int io_res;             /* checks for bytes read/written and copy_to/from_user results */
 
        dev = file->private_data;
-       if (dev == NULL) {
+       if (!dev)
                return -ENODEV;
-       }
 
        buffer = kzalloc(dev->report_size, GFP_KERNEL);
        if (!buffer)
@@ -652,9 +651,8 @@ static int iowarrior_release(struct inode *inode, struct file *file)
        int retval = 0;
 
        dev = file->private_data;
-       if (dev == NULL) {
+       if (!dev)
                return -ENODEV;
-       }
 
        dev_dbg(&dev->interface->dev, "minor %d\n", dev->minor);
 
@@ -764,10 +762,8 @@ static int iowarrior_probe(struct usb_interface *interface,
 
        /* allocate memory for our device state and initialize it */
        dev = kzalloc(sizeof(struct iowarrior), GFP_KERNEL);
-       if (dev == NULL) {
-               dev_err(&interface->dev, "Out of memory\n");
+       if (!dev)
                return retval;
-       }
 
        mutex_init(&dev->mutex);
 
@@ -813,10 +809,8 @@ static int iowarrior_probe(struct usb_interface *interface,
        if (!dev->int_in_urb)
                goto error;
        dev->int_in_buffer = kmalloc(dev->report_size, GFP_KERNEL);
-       if (!dev->int_in_buffer) {
-               dev_err(&interface->dev, "Couldn't allocate int_in_buffer\n");
+       if (!dev->int_in_buffer)
                goto error;
-       }
        usb_fill_int_urb(dev->int_in_urb, dev->udev,
                         usb_rcvintpipe(dev->udev,
                                        dev->int_in_endpoint->bEndpointAddress),
@@ -827,10 +821,8 @@ static int iowarrior_probe(struct usb_interface *interface,
        dev->read_queue =
            kmalloc(((dev->report_size + 1) * MAX_INTERRUPT_BUFFER),
                    GFP_KERNEL);
-       if (!dev->read_queue) {
-               dev_err(&interface->dev, "Couldn't allocate read_queue\n");
+       if (!dev->read_queue)
                goto error;
-       }
        /* Get the serial-number of the chip */
        memset(dev->chip_serial, 0x00, sizeof(dev->chip_serial));
        usb_string(udev, udev->descriptor.iSerialNumber, dev->chip_serial,