linux-kernel - [PATCH] DMA: OMAP: Remove extra looping from omap_request

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <1309356549.3995.13.camel@quad>
Date:	Wed, 29 Jun 2011 10:09:09 -0400
From:	Scott Ellis <scott@...pnowtek.com>
To:	linux-omap@...r.kernel.org
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>
Subject: [PATCH] DMA: OMAP: Remove extra looping from omap_request_dma

Break from dma channel search when a free one is found.

Signed-off-by: Scott Ellis <scott@...pnowtek.com>
---
 arch/arm/plat-omap/dma.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index c22217c..3d36fcf 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -678,10 +678,9 @@ int omap_request_dma(int dev_id, const char *dev_name,
 
 	spin_lock_irqsave(&dma_chan_lock, flags);
 	for (ch = 0; ch < dma_chan_count; ch++) {
-		if (free_ch == -1 && dma_chan[ch].dev_id == -1) {
+		if (dma_chan[ch].dev_id == -1) {
 			free_ch = ch;
-			if (dev_id == 0)
-				break;
+			break;
 		}
 	}
 	if (free_ch == -1) {

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/