QiaoChong 25970b517d parport_pc: fix find_superio io compare code, should use equal test. ...

commit 21698fd579 upstream.

In the original code before 181bf1e815 the loop was continuing until
it finds the first matching superios[i].io and p->base.
But after 181bf1e815 the logic changed and the loop now returns the
pointer to the first mismatched array element which is then used in
get_superio_dma() and get_superio_irq() and thus returning the wrong
value.
Fix the condition so that it now returns the correct pointer.

Fixes: 181bf1e815 ("parport_pc: clean up the modified while loops using for")
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: QiaoChong <qiaochong@loongson.cn>
[rewrite the commit message]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-03-23 20:10:05 +01:00

..

BUGS-parport

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

daisy.c

parport: cleanup statics initialization to NULL or 0

2017-08-28 17:25:43 +02:00

ieee1284_ops.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ieee1284.c

parport: ieee1284: mark expected switch fall-throughs

2018-07-15 14:13:00 +02:00

Kconfig

docs: Fix some broken references

2018-06-15 18:10:01 -03:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

multiface.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

parport_amiga.c

parport: drop owner assignment from platform_drivers

2014-10-20 16:21:20 +02:00

parport_atari.c

parport: cleanup statics initialization to NULL or 0

2017-08-28 17:25:43 +02:00

parport_ax88796.c

parport: ax88796: Delete an unnecessary variable initialisation in parport_ax88796_probe()

2018-03-14 17:54:09 +01:00

parport_cs.c

drivers/parport: use module_pcmcia_driver() in pcmcia drivers

2013-03-15 12:26:38 -07:00

parport_gsc.c

parisc/parport_gsc: Use NULL to avoid sparse warning

2018-03-27 18:52:21 +02:00

parport_gsc.h

parisc: parport0: fix this legacy no-device port driver!

2013-06-01 14:46:42 +02:00

parport_ip32.c

parport: make parport_ip32_ops const and __initconst

2017-10-20 15:17:44 +02:00

parport_mfc3.c

parport: cleanup statics initialization to NULL or 0

2017-08-28 17:25:43 +02:00

parport_pc.c

parport_pc: fix find_superio io compare code, should use equal test.

2019-03-23 20:10:05 +01:00

parport_serial.c

parport: parport_serial: Add WCH CH382L PCIe single parallel port support

2018-07-07 17:35:10 +02:00

parport_sunbpp.c

parport: sunbpp: fix error return code

2018-07-15 14:13:00 +02:00

probe.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

procfs.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

share.c

parport: fix attempt to write duplicate procfiles

2017-03-16 17:32:21 +09:00

TODO-parport

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00