diff options
| author | Tony Lindgren <tony@atomide.com> | 2015-06-09 23:37:31 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-06-09 23:37:31 -0700 |
| commit | 63e63a1981c7247fea41ce97b3144befc8f2fb7b (patch) | |
| tree | 74a5708579661a741b6c62096530e68aee949273 /drivers/usb/chipidea/debug.c | |
| parent | 5b83b2234be6733cfe22036c38031b2c890b3db8 (diff) | |
| parent | a3e362f18c01f28abcb6d8e5d00be8b5d97ea09d (diff) | |
Merge branch 'wakeirq-8250' into omap-for-v4.2/wakeirq-v2
Diffstat (limited to 'drivers/usb/chipidea/debug.c')
| -rw-r--r-- | drivers/usb/chipidea/debug.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c index dfb05edcdb96..5b7061a33103 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -88,9 +88,13 @@ static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf, char buf[32]; int ret; - if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + count = min_t(size_t, sizeof(buf) - 1, count); + if (copy_from_user(buf, ubuf, count)) return -EFAULT; + /* sscanf requires a zero terminated string */ + buf[count] = '\0'; + if (sscanf(buf, "%u", &mode) != 1) return -EINVAL; |