From: Olof Johansson <olof@lixom.net>
Date: Thu, 22 Dec 2011 14:17:40 +0000 (+0000)
Subject: ARM: tegra: Don't WARN_ON() for too early dma channel allocations
X-Git-Tag: firefly_0821_release~3680^2~3234^2~11^2~21
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=13ae3d5bdf737d6078a562154ff4fef0ba5d0de1;p=firefly-linux-kernel-4.4.55.git

ARM: tegra: Don't WARN_ON() for too early dma channel allocations

Since we'll do opportunistic allocations before the dma subsystem is
enabled we want just silent failures and retries instead.

Signed-off-by: Olof Johansson <olof@lixom.net>
---

diff --git a/arch/arm/mach-tegra/dma.c b/arch/arm/mach-tegra/dma.c
index c0cf967e47d3..98b33c89b2c5 100644
--- a/arch/arm/mach-tegra/dma.c
+++ b/arch/arm/mach-tegra/dma.c
@@ -357,7 +357,7 @@ struct tegra_dma_channel *tegra_dma_allocate_channel(int mode)
 	int channel;
 	struct tegra_dma_channel *ch = NULL;
 
-	if (WARN_ON(!tegra_dma_initialized))
+	if (!tegra_dma_initialized)
 		return NULL;
 
 	mutex_lock(&tegra_dma_lock);