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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-07-03 07:47:38 -0500
committerMyungJoo Ham <myungjoo.ham@samsung.com>2017-07-06 10:16:17 +0900
commit9e578b37505018622dfafc40eed7cd78ff2af221 (patch)
tree38a9b171aaebba879a5361b0e78c23057292fd93 /drivers/devfreq
parentda55b1ad4b29b6ab44d5dc8ea8306260246d2699 (diff)
downloadlinux-9e578b37505018622dfafc40eed7cd78ff2af221.tar.gz
PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()
platform_get_irq() returns an error code, but the tegra-devfreq
driver ignores it and always returns -ENODEV. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly.

Notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af

Print and propagate the return value of platform_get_irq on failure.

Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/devfreq')
-rw-r--r--drivers/devfreq/tegra-devfreq.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 214fff96fa4a..ae712159246f 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
-		dev_err(&pdev->dev, "Failed to get IRQ\n");
-		return -ENODEV;
+	if (irq < 0) {
+		dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
+		return irq;
 	}
 
 	platform_set_drvdata(pdev, tegra);