[patch] Add some asserts

[Rafael Espíndola]

> Unfortunately, the screen is black.

With the attached patch it works :-)

Cheers,
Rafael
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diff --git a/src/radeon_atombios.c b/src/radeon_atombios.c
index c272c9a..567238c 100644
--- a/src/radeon_atombios.c
+++ b/src/radeon_atombios.c
@@ -1432,7 +1432,7 @@ rhdAtomFirmwareInfoQuery(atomBiosHandlePtr handle,
     return ATOM_SUCCESS;
 }
 
-const int object_connector_convert[] =
+static const int object_connector_convert[] =
     { CONNECTOR_NONE,
       CONNECTOR_DVI_I,
       CONNECTOR_DVI_I,
@@ -1453,6 +1453,7 @@ const int object_connector_convert[] =
       CONNECTOR_NONE,
       CONNECTOR_NONE,
       CONNECTOR_DISPLAY_PORT,
+      CONNECTOR_DISPLAY_PORT,
     };
 
 xf86MonPtr radeon_atom_get_edid(xf86OutputPtr output)
@@ -1847,6 +1848,7 @@ RADEONGetATOMConnectorInfoFromBIOSObject (ScrnInfoPtr pScrn)
 	    uint8_t con_obj_id, con_obj_num, con_obj_type;
 
 	    con_obj_id = (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
+	    assert(con_obj_id <  sizeof(object_connector_convert)/sizeof(int));
 	    con_obj_num = (le16_to_cpu(path->usConnObjectId) & ENUM_ID_MASK) >> ENUM_ID_SHIFT;
 	    con_obj_type = (le16_to_cpu(path->usConnObjectId) & OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 
@@ -1879,6 +1881,7 @@ RADEONGetATOMConnectorInfoFromBIOSObject (ScrnInfoPtr pScrn)
 			slot_config = igp_obj->ulDDISlot2Config;
 
 		    ct = (slot_config  >> 16) & 0xff;
+		    assert(ct <  sizeof(object_connector_convert)/sizeof(int));
 		    info->BiosConnector[i].ConnectorType = object_connector_convert[ct];
 		    info->BiosConnector[i].connector_object_id = ct;
 		    info->BiosConnector[i].igp_lane_info = slot_config & 0xffff;
diff --git a/src/radeon_output.c b/src/radeon_output.c
index 107955d..330a0b3 100644
--- a/src/radeon_output.c
+++ b/src/radeon_output.c
@@ -2946,6 +2946,7 @@ Bool RADEONSetupConnectors(ScrnInfoPtr pScrn)
 	    } else if (conntype == CONNECTOR_DISPLAY_PORT) {
 		output = RADEONOutputCreate(pScrn, "DisplayPort-%d", --num_dp);
 	    } else {
+		assert(conntype < sizeof(ConnectorTypeName)/sizeof(char *));
 		output = RADEONOutputCreate(pScrn,
 					    ConnectorTypeName[conntype], 0);
 	    }