1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 3ad0e51cb2ab..ff767755e98b 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -349,13 +349,12 @@ static u32 hpt37x_find_mode(struct ata_port *ap, int speed)
 
 static int hpt_dma_blacklisted(const struct ata_device *dev, char *modestr, const char *list[])
 {
-        unsigned char model_num[40];
+        unsigned char model_num[ATA_ID_PROD_LEN];
         char *s;
         unsigned int len;
         int i = 0;
 
-        ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS,
-                          sizeof(model_num));
+        ata_id_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
         s = &model_num[0];
         len = strnlen(s, sizeof(model_num));