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i40e: Fix sparse error: uninitialized symbol 'ring'

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Init pointer with NULL in default switch case statement.

Previously the error was produced when compiling against sparse.
i40e_debugfs.c:582 i40e_dbg_dump_desc() error: uninitialized symbol 'ring'.

Fixes: 44ea803e2f ("i40e: introduce new dump desc XDP command")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Arkadiusz Kubalewski 2021-03-26 19:43:41 +01:00 committed by Tony Nguyen
parent 12738ac475
commit d6d04ee6d2
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/intel/i40e/i40e_debugfs.c
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@ -578,6 +578,9 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
case RING_TYPE_XDP:
ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
break;
default:
ring = NULL;
break;
}
if (!ring)
return;