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[pxe] Convert external PXE API errors into iPXE platform-generated errors

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2013-04-29 19:58:25 +01:00
parent de1fafd2f8
commit e411b37eb1
4 changed files with 27 additions and 16 deletions
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18
src/arch/i386/interface/pxeparent/pxeparent.c
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@@ -31,6 +31,12 @@ FILE_LICENCE ( GPL2_OR_LATER );
*
*/
/* Disambiguate the various error causes */
#define EINFO_EPXECALL \
__einfo_uniqify ( EINFO_EPLATFORM, 0x01, \
"External PXE API error" )
#define EPXECALL( status ) EPLATFORM ( EINFO_EPXECALL, status )
/**
* Name PXE API call
*
@@ -151,16 +157,8 @@ int pxeparent_call ( SEGOFF16_t entry, unsigned int function,
/* Determine return status code based on PXENV_EXIT and
* PXENV_STATUS
*/
if ( exit == PXENV_EXIT_SUCCESS ) {
rc = 0;
} else {
rc = -pxeparent_params.Status;
/* Paranoia; don't return success for the combination
* of PXENV_EXIT_FAILURE but PXENV_STATUS_SUCCESS
*/
if ( rc == 0 )
rc = -EIO;
}
rc = ( ( exit == PXENV_EXIT_SUCCESS ) ?
0 : -EPXECALL ( pxeparent_params.Status ) );
/* If anything goes wrong, print as much debug information as
* it's possible to give.