diff options
Diffstat (limited to 'drivers/staging/dgrp/dgrp_sysfs.c')
| -rw-r--r-- | drivers/staging/dgrp/dgrp_sysfs.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/staging/dgrp/dgrp_sysfs.c b/drivers/staging/dgrp/dgrp_sysfs.c index 9a18a2c9e73b..2f9345ff0abb 100644 --- a/drivers/staging/dgrp/dgrp_sysfs.c +++ b/drivers/staging/dgrp/dgrp_sysfs.c @@ -65,7 +65,9 @@ static ssize_t dgrp_class_pollrate_store(struct device *c, struct device_attribute *attr, const char *buf, size_t count) { - sscanf(buf, "0x%x\n", &dgrp_poll_tick); + if (sscanf(buf, "0x%x\n", &dgrp_poll_tick) != 1) + return -EINVAL; + return count; } static DEVICE_ATTR(pollrate, 0600, dgrp_class_pollrate_show, |