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Automatically release I/O permissions on shutdown

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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>
This commit is contained in:
Carl-Daniel Hailfinger
2012-07-21 17:27:08 +00:00
parent 0b9af36772
commit d6bb828b01
15 changed files with 56 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
programmer.h
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@ -302,8 +302,7 @@ struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device);
struct pci_dev *pci_card_find(uint16_t vendor, uint16_t device,
uint16_t card_vendor, uint16_t card_device);
#endif
void get_io_perms(void);
void release_io_perms(void);
int rget_io_perms(void);
#if CONFIG_INTERNAL == 1
extern int is_laptop;
extern int laptop_ok;