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>
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@ -1026,7 +1026,7 @@ static int poch_ioctl(struct inode *inode, struct file *filp,
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}
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break;
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case POCH_IOC_GET_COUNTERS:
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if (access_ok(VERIFY_WRITE, argp, sizeof(struct poch_counters)))
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if (!access_ok(VERIFY_WRITE, argp, sizeof(struct poch_counters)))
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return -EFAULT;
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spin_lock_irq(&channel->counters_lock);
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