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Set IOPL when /dev/mem is opened. Fixed small bug in MIOCMAP/MIOCUNMAP

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This commit is contained in:
Philip Homburg 2005-11-04 17:16:54 +00:00
parent 80cce8b3d3
commit df279ac347
1 changed files with 13 additions and 0 deletions
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13
drivers/memory/memory.c
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@ -205,8 +205,20 @@ PRIVATE int m_do_open(dp, m_ptr)
struct driver *dp; struct driver *dp;
message *m_ptr; message *m_ptr;
{ {
int r;
/* Check device number on open. */ /* Check device number on open. */
if (m_prepare(m_ptr->DEVICE) == NIL_DEV) return(ENXIO); if (m_prepare(m_ptr->DEVICE) == NIL_DEV) return(ENXIO);
if (m_device == MEM_DEV)
{
r = sys_enable_iop(m_ptr->PROC_NR);
if (r != OK)
{
printf("m_do_open: sys_enable_iop failed for %d: %d\n",
m_ptr->PROC_NR, r);
return r;
}
}
return(OK); return(OK);
} }
@ -345,6 +357,7 @@ message *m_ptr; /* pointer to control message */
int r, do_map; int r, do_map;
struct mapreq mapreq; struct mapreq mapreq;
if ((*dp->dr_prepare)(m_ptr->DEVICE) == NIL_DEV) return(ENXIO);
if (m_device != MEM_DEV) if (m_device != MEM_DEV)
return ENOTTY; return ENOTTY;