diff options
Diffstat (limited to 'drivers/ata/libahci.c')
| -rw-r--r-- | drivers/ata/libahci.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 0cff1167c83c..956851f0d44f 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1031,12 +1031,13 @@ static ssize_t ahci_led_show(struct ata_port *ap, char *buf) static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, size_t size) { - int state; + unsigned int state; int pmp; struct ahci_port_priv *pp = ap->private_data; struct ahci_em_priv *emp; - state = simple_strtoul(buf, NULL, 0); + if (kstrtouint(buf, 0, &state) < 0) + return -EINVAL; /* get the slot number from the message */ pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8; |