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| author | Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> | 2012-07-21 17:27:08 +0000 |
|---|---|---|
| committer | Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> | 2012-07-21 17:27:08 +0000 |
| commit | d6bb828b017eaf89d5a4c52803ebc0029725383b (patch) | |
| tree | 722abce67e8d8864158ec9261405461a28e313b0 /rayer_spi.c | |
| parent | 0b9af36772b655f4de118ddb296207b6ca49cb58 (diff) | |
| download | ast2050-flashrom-d6bb828b017eaf89d5a4c52803ebc0029725383b.zip ast2050-flashrom-d6bb828b017eaf89d5a4c52803ebc0029725383b.tar.gz | |
Automatically release I/O permissions on shutdown
Get_io_perms() is renamed to rget_io_perms() and automatically registers
a function to release I/O permissions on shutdown.
Actually release I/O permissions on Solaris and iopl()-supporting
operating systems like Linux.
This patch fixes quite a few programmers which forgot to release I/O
permissions on shutdown, and it simplifies the shutdown and error
handling code for all others.
Do not call exit(1) if I/O permissions are denied and return an error
instead. This part of the patch was written by Niklas Söderlund.
Corresponding to flashrom svn r1551.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Signed-off-by: Niklas Söderlund <niso@kth.se>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
Diffstat (limited to 'rayer_spi.c')
| -rw-r--r-- | rayer_spi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/rayer_spi.c b/rayer_spi.c index 584a6a0..8e48e6e 100644 --- a/rayer_spi.c +++ b/rayer_spi.c @@ -168,7 +168,8 @@ int rayer_spi_init(void) rayer_miso_bit = 4; } - get_io_perms(); + if (rget_io_perms()) + return 1; /* Get the initial value before writing to any line. */ lpt_outbyte = INB(lpt_iobase); |
