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

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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>
This commit is contained in:
Wolfram Sang 2016-08-25 19:39:17 +02:00 committed by Greg Kroah-Hartman
parent 081e303e49
commit 3cfb4842fb
1 changed files with 6 additions and 14 deletions
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20
drivers/usb/misc/iowarrior.c
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@ -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,