Staging: poch: fix verification of memory area

fix verification of memory area

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/poch/poch.c b/drivers/staging/poch/poch.c
index ec343ef..0d111dd 100644 (file)
--- a/drivers/staging/poch/poch.c
+++ b/drivers/staging/poch/poch.c
@@ -1026,7 +1026,7 @@ static int poch_ioctl(struct inode *inode, struct file *filp,
                }
                break;
        case POCH_IOC_GET_COUNTERS:
-               if (access_ok(VERIFY_WRITE, argp, sizeof(struct poch_counters)))
+               if (!access_ok(VERIFY_WRITE, argp, sizeof(struct poch_counters)))
                        return -EFAULT;
 
                spin_lock_irq(&channel->counters_lock);