tty: TIOCGSOFTCAR/SSOFTCAR on pty is wron
The termios settings ioctls on a pty should affect the bound tty side not the pty. The SOFTCAR ioctls use the wrong device file. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -937,12 +937,14 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
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return 0;
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#endif
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case TIOCGSOFTCAR:
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return put_user(C_CLOCAL(tty) ? 1 : 0,
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/* FIXME: for correctness we may need to take the termios
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lock here - review */
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return put_user(C_CLOCAL(real_tty) ? 1 : 0,
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(int __user *)arg);
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case TIOCSSOFTCAR:
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if (get_user(arg, (unsigned int __user *) arg))
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return -EFAULT;
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return tty_change_softcar(tty, arg);
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return tty_change_softcar(real_tty, arg);
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default:
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return -ENOIOCTLCMD;
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}
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