geterror(9F)

NAME

     geterror - return I/O error

SYNOPSIS

     #include <sys/types.h>
     #include <sys/buf.h>
     #include <sys/ddi.h>

     int geterror(struct buf *bp);

INTERFACE LEVEL

     Architecture independent level 1 (DDI/DKI).

PARAMETERS

     bp    Pointer to a buf(9S) structure.

DESCRIPTION

     geterror() returns the error number  from the error field of
     the  buffer header structure.

RETURN VALUES

     An error number indicating the error condition  of  the  I/O
     request  is  returned. If the I/O request completes success-
     fully,  0 is returned.

CONTEXT

     geterror() can be called from user or interrupt context.

SEE ALSO

     buf(9S)

     Writing Device Drivers