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[SCSI] ufs: reverse the ufshcd_is_device_present logic

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Otherwise it counter intuitively returns 0 if device is present.

Signed-off-by: Venkatraman S <svenkatr@ti.com>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Venkatraman S 2012-07-10 19:39:23 +05:30 • committed by James Bottomley
parent 17ccafc4ef
commit 73ec513a3b
1 changed files with 3 additions and 3 deletions

6
drivers/scsi/ufs/ufshcd.c
View file

@ -232,11 +232,11 @@ static inline u32 ufshcd_get_ufs_version(struct ufs_hba *hba)
* the host controller
* @reg_hcs - host controller status register value
*
* Returns 0 if device present, non-zero if no device detected
* Returns 1 if device present, 0 if no device detected
*/
static inline int ufshcd_is_device_present(u32 reg_hcs)
{
return (DEVICE_PRESENT & reg_hcs) ? 0 : -1;
return (DEVICE_PRESENT & reg_hcs) ? 1 : 0;
}
/**
@ -911,7 +911,7 @@ static int ufshcd_make_hba_operational(struct ufs_hba *hba)
/* check if device present */
reg = readl((hba->mmio_base + REG_CONTROLLER_STATUS));
if (ufshcd_is_device_present(reg)) {
if (!ufshcd_is_device_present(reg)) {
dev_err(&hba->pdev->dev, "cc: Device not present\n");
err = -ENXIO;
goto out;