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path: root/drivers/input/touchscreen/edt-ft5x06.c
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Diffstat (limited to 'drivers/input/touchscreen/edt-ft5x06.c')
-rw-r--r--drivers/input/touchscreen/edt-ft5x06.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index b06a5e3a665..64957770b52 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -566,9 +566,12 @@ 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)
- *off += read;
+ if (copy_to_user(buf, tsdata->raw_buffer + *off, read)) {
+ error = -EFAULT;
+ goto out;
+ }
+
+ *off += read;
out:
mutex_unlock(&tsdata->mutex);
return error ?: read;