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Commit 35b1da4e authored by Axel Lin's avatar Axel Lin Committed by Dmitry Torokhov
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Input: edt-ft5x06 - return -EFAULT on copy_to_user() error 



copy_to_user() returns the number of bytes remaining, but we want a
negative error code here.

Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 30ebb7fa

drivers/input/touchscreen/edt-ft5x06.c

+6 −3
Original line number Diff line number Diff line
@@ -566,8 +566,11 @@ static ssize_t edt_ft5x06_debugfs_raw_data_read(struct file *file, 
	}



	read = min_t(size_t, count, tsdata->raw_bufsize - *off);

	error = copy_to_user(buf, tsdata->raw_buffer + *off, read);

	if (!error)

	if (copy_to_user(buf, tsdata->raw_buffer + *off, read)) {

		error = -EFAULT;

		goto out;

	}



	*off += read;

out:

	mutex_unlock(&tsdata->mutex);