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path: root/drivers/usb/misc/adutux.c
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Diffstat (limited to 'drivers/usb/misc/adutux.c')
-rw-r--r--drivers/usb/misc/adutux.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 564268fca07a..db9a9e6ff6be 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -21,6 +21,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -389,10 +390,6 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
dev->secondary_head += (amount - i);
bytes_read += (amount - i);
bytes_to_read -= (amount - i);
- if (i) {
- retval = bytes_read ? bytes_read : -EFAULT;
- goto exit;
- }
} else {
/* we check the primary buffer */
spin_lock_irqsave (&dev->buflock, flags);
@@ -567,20 +564,20 @@ static ssize_t adu_write(struct file *file, const __user char *buffer,
}
dev_dbg(&dev->udev->dev,
- "%s : in progress, count = %Zd\n",
+ "%s : in progress, count = %zd\n",
__func__, count);
} else {
spin_unlock_irqrestore(&dev->buflock, flags);
set_current_state(TASK_RUNNING);
remove_wait_queue(&dev->write_wait, &waita);
- dev_dbg(&dev->udev->dev, "%s : sending, count = %Zd\n",
+ dev_dbg(&dev->udev->dev, "%s : sending, count = %zd\n",
__func__, count);
/* write the data into interrupt_out_buffer from userspace */
buffer_size = usb_endpoint_maxp(dev->interrupt_out_endpoint);
bytes_to_write = count > buffer_size ? buffer_size : count;
dev_dbg(&dev->udev->dev,
- "%s : buffer_size = %Zd, count = %Zd, bytes_to_write = %Zd\n",
+ "%s : buffer_size = %zd, count = %zd, bytes_to_write = %zd\n",
__func__, buffer_size, count, bytes_to_write);
if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write) != 0) {