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Thomas Pfaff 7deb39ed8d serial_core: fix uart PORT_UNKNOWN handling ... While porting a RS485 driver from 2.6.29 to 3.14, i noticed that the serial tty driver could break it by using uart ports that it does not own : 1. uart_change_pm ist called during uart_open and calls the uart pm function without checking for PORT_UNKNOWN. The fix is to move uart_change_pm from uart_open to uart_port_startup. 2. The return code from the uart request_port call in uart_set_info is not handled properly, leading to the situation that the serial driver also thinks it owns the uart ports. This can triggered by doing following actions : setserial /dev/ttyS0 uart none # release the uart ports modprobe lirc-serial # or any other device that uses the uart setserial /dev/ttyS0 uart 16550 # gives no error and the uart tty driver # can use the ports as well Signed-off-by: Thomas Pfaff <tpfaff@pcs.com> Reviewed-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		11 years ago
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hvc	tty/hvc_opal: Kick the HVC thread on OPAL console events	11 years ago
ipwireless	tty: Fix low_latency BUG	11 years ago
serial	serial_core: fix uart PORT_UNKNOWN handling	11 years ago
vt	vt: detect and ignore OSC codes.	11 years ago
Kconfig	drivers/tty: ehv_bytechan fails to build as a module	11 years ago
Makefile	…
amiserial.c	tty/amiserial: avoid interruptible_sleep_on	11 years ago
bfin_jtag_comm.c	…
cyclades.c	tty: an overflow of multiplication in drivers/tty/cyclades.c	11 years ago
ehv_bytechan.c	…
goldfish.c	tty: delete non-required instances of include <linux/init.h>	11 years ago
isicom.c	…
metag_da.c	tree-wide: use reinit_completion instead of INIT_COMPLETION	11 years ago
moxa.c	…
moxa.h	…
mxser.c	…
mxser.h	…
n_gsm.c	tty: n_gsm: Fix for modems with brk in modem status control	11 years ago
n_hdlc.c	…
n_r3964.c	tty: Always handle NULL flag ptr	11 years ago
n_tracerouter.c	…
n_tracesink.c	…
n_tracesink.h	…
n_tty.c	n_tty: Simplify input_available_p()	11 years ago
nozomi.c	…
pty.c	…
rocket.c	tty: remove DEFINE_PCI_DEVICE_TABLE macro	11 years ago
rocket.h	…
rocket_int.h	…
synclink.c	synclink: fix info leak in ioctl	11 years ago
synclink_gt.c	tty: synclink: avoid sleep_on race	11 years ago
synclinkmp.c	synclink: fix info leak in ioctl	11 years ago
sysrq.c	…
tty_audit.c	audit: anchor all pid references in the initial pid namespace	11 years ago
tty_buffer.c	tty: Fix race condition between __tty_buffer_request_room and flush_to_ldisc	11 years ago
tty_io.c	tty: fix memleak in alloc_pid	11 years ago
tty_ioctl.c	…
tty_ldisc.c	tty: delete non-required instances of include <linux/init.h>	11 years ago
tty_ldsem.c	lockdep: Make held_lock->check and "int check" argument bool	11 years ago
tty_mutex.c	…
tty_port.c	tty: delete non-required instances of include <linux/init.h>	11 years ago