1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c
index 53f079cc00af..d8ede85fe17f 100644
--- a/drivers/ide/cs5530.c
+++ b/drivers/ide/cs5530.c
@@ -81,11 +81,12 @@ static u8 cs5530_udma_filter(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = drive->hwif;
         ide_drive_t *mate = ide_get_pair_dev(drive);
-        u16 *mateid = mate->id;
+        u16 *mateid;
         u8 mask = hwif->ultra_mask;
 
         if (mate == NULL)
                 goto out;
+        mateid = mate->id;
 
         if (ata_id_has_dma(mateid) && __ide_dma_bad_drive(mate) == 0) {
                 if ((mateid[ATA_ID_FIELD_VALID] & 4) &&