From: Cyril Roelandt <tipecaml@gmail.com>
Date: Wed, 12 Dec 2012 00:24:54 +0000 (+0100)
Subject: spi/sh-hspi: fix return value check in hspi_probe().
X-Git-Tag: upstream/snapshot3+hdmi~5998^4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d3601e56cf64a3f2df6f6380cccb3644274406e2;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

spi/sh-hspi: fix return value check in hspi_probe().

According to its documentation, clk_get() returns a "valid IS_ERR() condition
containing errno", so we should call IS_ERR() rather than a NULL check.

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---

diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index 32f7b55..60cfae5 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -290,7 +290,7 @@ static int hspi_probe(struct platform_device *pdev)
 	}
 
 	clk = clk_get(NULL, "shyway_clk");
-	if (!clk) {
+	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "shyway_clk is required\n");
 		ret = -EINVAL;
 		goto error0;