libata: use ata_id_c_string()
There were several places where ATA ID strings are manually terminated
and in some places possibly unterminated strings were passed to string
functions which don't limit length like strstr(). This patch converts
all of them over to ata_id_c_string().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 76e3860..fde5ce9 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -153,11 +153,11 @@
static unsigned long ali_20_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
{
- char model_num[ATA_ID_PROD_LEN];
+ char model_num[ATA_ID_PROD_LEN + 1];
/* No DMA on anything but a disk for now */
if (adev->class != ATA_DEV_ATA)
mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
- ata_id_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num));
+ ata_id_c_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num));
if (strstr(model_num, "WDC"))
return mask &= ~ATA_MASK_UDMA;
return ata_pci_default_filter(ap, adev, mask);