linux-kernel - [RFC patch resend] DMAengine/Langwell: put dev object in error path

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Message-ID: <CAJd=RBBhEtRW4gxqzyN6PerCFen9mujH5KUb0kx3wMBUYpC0qg@mail.gmail.com>
Date:	Sat, 13 Aug 2011 12:31:26 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	"Koul, Vinod" <vinod.koul@...el.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [RFC patch resend] DMAengine/Langwell: put dev object in error path

When allocating resources for DMA channel, if error encountered, the dev object
of the relevant DMA device should be put, corresponding to the get operation.

Signed-off-by: Hillf Danton <dhillf@...il.com>
---

--- a/drivers/dma/intel_mid_dma.c	Sat Aug 13 11:44:46 2011
+++ intel_mid_dma.c	Sat Aug 13 12:39:53 2011
@@ -871,6 +871,7 @@ static int intel_mid_dma_alloc_chan_reso
 	if (mid->state == SUSPENDED) {
 		if (dma_resume(mid->pdev)) {
 			pr_err("ERR_MDMA: resume failed");
+			pm_runtime_put(&mid->pdev->dev);
 			return -EFAULT;
 		}
 	}
--
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