| commit | 23ec811660ad80ddd94887bf1538caf29ff0a605 | |
| author | Dirk Eibach <eibach@gdsys.de> | |
| Thu, 18 Jun 2009 23:49:15 +0000 (18 16:49 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 2 Jul 2009 23:40:40 +0000 (2 16:40 -0700) | ||
| tree | 00e332c1b35526bd8235794a745153ad87fc2c46 | treesnapshot (tar.gz zip) |
| parent | f36b53bbfd593b08456a1cf7196fdd84391c89b3 | commitdiff |
char: moxa, prevent opening unavailable ports
commit a90b037583d5f1ae3e54e9c687c79df82d1d34a4 upstream.
In moxa.c there are 32 minor numbers reserved for each device. The number
of ports actually available per device is stored in
moxa_board_conf->numPorts. This number is not considered in moxa_open().
Opening a port that is not available results in a kernel oops. This patch
adds a test to moxa_open() that prevents opening unavailable ports.
[akpm@linux-foundation.org: avoid multiple returns]
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit a90b037583d5f1ae3e54e9c687c79df82d1d34a4 upstream.
In moxa.c there are 32 minor numbers reserved for each device. The number
of ports actually available per device is stored in
moxa_board_conf->numPorts. This number is not considered in moxa_open().
Opening a port that is not available results in a kernel oops. This patch
adds a test to moxa_open() that prevents opening unavailable ports.
[akpm@linux-foundation.org: avoid multiple returns]
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/char/moxa.c | diffblobblamehistory |