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path: root/drivers/hid/hid-debug.c
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Diffstat (limited to 'drivers/hid/hid-debug.c')
-rw-r--r--drivers/hid/hid-debug.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index cd4ece6fdfb9..56f314fbd4f9 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -29,6 +29,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/poll.h>
@@ -564,10 +565,10 @@ void hid_debug_event(struct hid_device *hdev, char *buf)
struct hid_debug_list *list;
list_for_each_entry(list, &hdev->debug_list, node) {
- for (i = 0; i <= strlen(buf); i++)
- list->hid_debug_buf[(list->tail + i) % (HID_DEBUG_BUFSIZE - 1)] =
+ for (i = 0; i < strlen(buf); i++)
+ list->hid_debug_buf[(list->tail + i) % HID_DEBUG_BUFSIZE] =
buf[i];
- list->tail = (list->tail + i) % (HID_DEBUG_BUFSIZE - 1);
+ list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE;
}
}
EXPORT_SYMBOL_GPL(hid_debug_event);