diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-16 09:09:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-16 09:09:24 +0200 |
| commit | 500f0716b5f7fd6b0ff3d045588c7588ce2eee1d (patch) | |
| tree | 05cfa2e77069af443f06bcfbf327f9aa2050eec7 /drivers/hid/hid-debug.c | |
| parent | 4eb44f69e77141992e305d9e75e021b196071cdd (diff) | |
| parent | 9d3cce1e8b8561fed5f383d22a4d6949db4eadbe (diff) | |
| download | linux-500f0716b5f7fd6b0ff3d045588c7588ce2eee1d.tar.gz linux-500f0716b5f7fd6b0ff3d045588c7588ce2eee1d.tar.bz2 linux-500f0716b5f7fd6b0ff3d045588c7588ce2eee1d.zip | |
Merge 4.18-rc5 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hid/hid-debug.c')
| -rw-r--r-- | drivers/hid/hid-debug.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c index 8469b6964ff6..b48100236df8 100644 --- a/drivers/hid/hid-debug.c +++ b/drivers/hid/hid-debug.c @@ -1154,6 +1154,8 @@ copy_rest: goto out; if (list->tail > list->head) { len = list->tail - list->head; + if (len > count) + len = count; if (copy_to_user(buffer + ret, &list->hid_debug_buf[list->head], len)) { ret = -EFAULT; @@ -1163,6 +1165,8 @@ copy_rest: list->head += len; } else { len = HID_DEBUG_BUFSIZE - list->head; + if (len > count) + len = count; if (copy_to_user(buffer, &list->hid_debug_buf[list->head], len)) { ret = -EFAULT; @@ -1170,7 +1174,9 @@ copy_rest: } list->head = 0; ret += len; - goto copy_rest; + count -= len; + if (count > 0) + goto copy_rest; } } |