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| author | Jiri Slaby <jslaby@suse.cz> | 2012-03-05 17:52:08 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-08 23:47:01 +0400 |
| commit | 4da2405606d47ca767e0c6ba556f127cfa2181d0 (patch) | |
| tree | d03cb844398c91ee97980a85a3eee007c184ce0f /drivers/tty/serial/ioc4_serial.c | |
| parent | 885f8b0f8ab497b8520f95ff3c1bb7efb1c331ac (diff) | |
| download | linux-4da2405606d47ca767e0c6ba556f127cfa2181d0.tar.xz | |
TTY: serial, use atomic_inc_return in ioc4_serial
We want to know the value of the atomic variable in intr_connect after
the increment. But atomic_inc doesn't, per definition, return the
value. It is just a pure coincidence that ia64 defines atomic_inc as
atomic_inc_return.
So fix this mistake by using atomic_inc_return properly.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/ioc4_serial.c')
| -rw-r--r-- | drivers/tty/serial/ioc4_serial.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c index 6b36c1554d7e..dfec69a310ab 100644 --- a/drivers/tty/serial/ioc4_serial.c +++ b/drivers/tty/serial/ioc4_serial.c @@ -975,7 +975,7 @@ intr_connect(struct ioc4_soft *soft, int type, BUG_ON(!((type == IOC4_SIO_INTR_TYPE) || (type == IOC4_OTHER_INTR_TYPE))); - i = atomic_inc(&soft-> is_intr_type[type].is_num_intrs) - 1; + i = atomic_inc_return(&soft-> is_intr_type[type].is_num_intrs) - 1; BUG_ON(!(i < MAX_IOC4_INTR_ENTS || (printk("i %d\n", i), 0))); /* Save off the lower level interrupt handler */ |