[PATCH] ahci: cosmetic changes to ahci_start/stop_engine()
* fascist-format comments according to comment style used in libata
core layer.
* if() -> if ()
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Zhao, Forrest <forrest.zhao@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 92e2b95..ee00aed9 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -410,30 +410,23 @@
{
u32 tmp;
- /*
- * Get current status
- */
+ /* get current status */
tmp = readl(port_mmio + PORT_CMD);
- /*
- * AHCI rev 1.1 section 10.3.1:
+ /* AHCI rev 1.1 section 10.3.1:
* Software shall not set PxCMD.ST to '1' until it verifies
* that PxCMD.CR is '0' and has set PxCMD.FRE to '1'
*/
if ((tmp & PORT_CMD_FIS_RX) == 0)
return -EPERM;
- /*
- * wait for engine to become idle.
- */
+ /* wait for engine to become idle */
tmp = ata_wait_register(port_mmio + PORT_CMD,
PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1,500);
- if(tmp & PORT_CMD_LIST_ON)
+ if (tmp & PORT_CMD_LIST_ON)
return -EBUSY;
- /*
- * Start DMA
- */
+ /* start DMA */
tmp |= PORT_CMD_START;
writel(tmp, port_mmio + PORT_CMD);
readl(port_mmio + PORT_CMD); /* flush */
@@ -447,20 +440,18 @@
tmp = readl(port_mmio + PORT_CMD);
- /* Check if the HBA is idle */
+ /* check if the HBA is idle */
if ((tmp & (PORT_CMD_START | PORT_CMD_LIST_ON)) == 0)
return 0;
- /* Setting HBA to idle */
+ /* setting HBA to idle */
tmp &= ~PORT_CMD_START;
writel(tmp, port_mmio + PORT_CMD);
- /* wait for engine to stop. This could be
- * as long as 500 msec
- */
+ /* wait for engine to stop. This could be as long as 500 msec */
tmp = ata_wait_register(port_mmio + PORT_CMD,
PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500);
- if(tmp & PORT_CMD_LIST_ON)
+ if (tmp & PORT_CMD_LIST_ON)
return -EIO;
return 0;