From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 3 May 2013 14:32:04 +0000 (+0100)
Subject: dmaengine: ste_dma40: Remove 'always true' checking
X-Git-Tag: upstream/snapshot3+hdmi~4839^2~17^2~23
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8a59fed39577d7313921a59dba8cc1711ae90da5;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

dmaengine: ste_dma40: Remove 'always true' checking

Before allocating memory for logical channels, the current driver
checks to see if there are any. Well as the dma40_memcpy_channels[]
array is always populated, the check is always true. Best to
remove the check.

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index f25c9cc..7ccb8e2 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3286,17 +3286,11 @@ static struct d40_base * __init d40_hw_detect_init(struct platform_device *pdev)
 	if (!base->lookup_phy_chans)
 		goto failure;
 
-	if (num_log_chans + ARRAY_SIZE(dma40_memcpy_channels)) {
-		/*
-		 * The max number of logical channels are event lines for all
-		 * src devices and dst devices
-		 */
-		base->lookup_log_chans = kzalloc(num_log_chans *
-						 sizeof(struct d40_chan *),
-						 GFP_KERNEL);
-		if (!base->lookup_log_chans)
-			goto failure;
-	}
+	base->lookup_log_chans = kzalloc(num_log_chans *
+					 sizeof(struct d40_chan *),
+					 GFP_KERNEL);
+	if (!base->lookup_log_chans)
+		goto failure;
 
 	base->reg_val_backup_chan = kmalloc(base->num_phy_chans *
 					    sizeof(d40_backup_regs_chan),