lkml.org 
[lkml]   [2018]   [Oct]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH AUTOSEL 4.4 60/65] PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()
Date
From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>

[ Upstream commit 9e578b37505018622dfafc40eed7cd78ff2af221 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/devfreq/tegra-devfreq.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 848b93ee930f..64a2e02b87d7 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);
--
2.17.1
\
 
 \ /
  Last update: 2018-10-25 16:32    [W:0.199 / U:11.600 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site