From: Julia Lawall <julia@xxxxxxx> In an error handling case the lock is not unlocked. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ expression E1; identifier f; @@ f (...) { <+... * spin_lock_irqsave (E1,...); ... when != E1 * return ...; ...+> } // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- drivers/serial/pmac_zilog.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c index f020de1..fe463b0 100644 --- a/drivers/serial/pmac_zilog.c +++ b/drivers/serial/pmac_zilog.c @@ -753,8 +753,10 @@ static void pmz_break_ctl(struct uart_port *port, int break_state) uap->curregs[R5] = new_reg; /* NOTE: Not subject to 'transmitter active' rule. */ - if (ZS_IS_ASLEEP(uap)) + if (ZS_IS_ASLEEP(uap)) { + spin_unlock_irqrestore(&port->lock, flags); return; + } write_zsreg(uap, R5, uap->curregs[R5]); } -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
