Messages in this thread Patch in this message | | | From | Venkatraman S <> | Subject | [PATCH 1/2] scsi/ufs: reverse the ufshcd_is_device_present logic | Date | Fri, 6 Apr 2012 10:57:08 +0530 |
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Otherwise it counter intuitively returns 0 if device is present.
Signed-off-by: Venkatraman S <svenkatr@ti.com> CC: Santosh Y <santoshsy@gmail.com> CC: Andrew Morton <akpm@linux-foundation.org> --- drivers/scsi/ufs/ufshcd.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 52b96e8..aa97200 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -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; -- 1.7.5.4
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