diff mbox

[22/63] dmaengine: ste_dma40: Move rev error-check up to revision acquisition

Message ID 1367591569-32197-23-git-send-email-lee.jones@linaro.org
State Accepted
Commit 8b2fe9b6b310a6e5d68de648d6f0697227581d66
Headers show

Commit Message

Lee Jones May 3, 2013, 2:32 p.m. UTC 
At the moment we fetch the hardware revision, then do some stuff, then
check whether the revision is correct and return in error if it's not.
Well we may as well check it as soon as we know what it is, so let's
move the check right up underneath where we acquire the version.

Acked-by: Vinod Koul <vnod.koul@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/dma/ste_dma40.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 34e0fb0..e5f0e3c 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3198,6 +3198,10 @@  static struct d40_base * __init d40_hw_detect_init(struct platform_device *pdev)
 	 * DB8540v1 has revision 4
 	 */
 	rev = AMBA_REV_BITS(pid);
+	if (rev < 2) {
+		d40_err(&pdev->dev, "hardware revision: %d is not supported", rev);
+		goto failure;
+	}
 
 	plat_data = pdev->dev.platform_data;
 
@@ -3212,12 +3216,6 @@  static struct d40_base * __init d40_hw_detect_init(struct platform_device *pdev)
 	dev_info(&pdev->dev, "hardware revision: %d @ 0x%x with %d physical channels\n",
 		 rev, res->start, num_phy_chans);
 
-	if (rev < 2) {
-		d40_err(&pdev->dev, "hardware revision: %d is not supported",
-			rev);
-		goto failure;
-	}
-
 	base = kzalloc(ALIGN(sizeof(struct d40_base), 4) +
 		       (num_phy_chans + num_log_chans + ARRAY_SIZE(dma40_memcpy_channels)) *
 		       sizeof(struct d40_chan), GFP_KERNEL);