From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Thu, 3 Apr 2014 21:49:38 +0000 (-0700)
Subject: drivers/rtc/rtc-imxdi.c: check the return value from clk_prepare_enable()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=3378f73da2d7fb765240dbf348cad11648c5b775;p=openwrt%2Fstaging%2Fblogic.git

drivers/rtc/rtc-imxdi.c: check the return value from clk_prepare_enable()

clk_prepare_enable() may fail, so let's check its return value and
propagate it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c
index abd7f9091f34..cd741c77e085 100644
--- a/drivers/rtc/rtc-imxdi.c
+++ b/drivers/rtc/rtc-imxdi.c
@@ -401,7 +401,9 @@ static int __init dryice_rtc_probe(struct platform_device *pdev)
 	imxdi->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(imxdi->clk))
 		return PTR_ERR(imxdi->clk);
-	clk_prepare_enable(imxdi->clk);
+	rc = clk_prepare_enable(imxdi->clk);
+	if (rc)
+		return rc;
 
 	/*
 	 * Initialize dryice hardware