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authorHannes Reinecke <hare@suse.de>2016-07-14 09:05:46 +0900
committerTejun Heo <tj@kernel.org>2016-07-14 10:47:20 -0400
commitbd18bc04caeff361a4fff477224fa5b5fe5ce603 (patch)
tree544e3179262a8134b93726bd84597e9c02118d41 /drivers/ata
parentb38d4d85b89c68b2748a5e225185073424510486 (diff)
ata: fixup ATA_PROT_NODATA
The taskfile protocol is a numeric value, and can not be ORed. Currently this is harmless as the protocol is always zeroed before, but if it ever has a non-zero value the ORing would create incorrect results. Signed-off-by: Hannes Reinecke <hare@suse.de> [hch: updated patch description] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-core.c4
-rw-r--r--drivers/ata/libata-eh.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f5eb07e06a2a..522848a6c43a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1238,7 +1238,7 @@ static int ata_read_native_max_address(struct ata_device *dev, u64 *max_sectors)
} else
tf.command = ATA_CMD_READ_NATIVE_MAX;
- tf.protocol |= ATA_PROT_NODATA;
+ tf.protocol = ATA_PROT_NODATA;
tf.device |= ATA_LBA;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
@@ -1297,7 +1297,7 @@ static int ata_set_max_sectors(struct ata_device *dev, u64 new_sectors)
tf.device |= (new_sectors >> 24) & 0xf;
}
- tf.protocol |= ATA_PROT_NODATA;
+ tf.protocol = ATA_PROT_NODATA;
tf.device |= ATA_LBA;
tf.lbal = (new_sectors >> 0) & 0xff;
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 61dc7a99e89a..7832e5514cb2 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3177,7 +3177,7 @@ static void ata_eh_park_issue_cmd(struct ata_device *dev, int park)
}
tf.flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
- tf.protocol |= ATA_PROT_NODATA;
+ tf.protocol = ATA_PROT_NODATA;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
if (park && (err_mask || tf.lbal != 0xc4)) {
ata_dev_err(dev, "head unload failed!\n");