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* [PATCH] mmc: mxcmmc: fix error return code in mxcmci_probe()
@ 2017-07-07  5:59 Gustavo A. R. Silva
  2017-07-11 14:43 ` Ulf Hansson
  0 siblings, 1 reply; 3+ messages in thread
From: Gustavo A. R. Silva @ 2017-07-07  5:59 UTC (permalink / raw)
  To: Ulf Hansson; +Cc: linux-mmc, linux-kernel, Gustavo A. R. Silva

platform_get_irq() returns an error code, but the mxcmmc driver
ignores it and always returns -EINVAL. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly.

Print error message and propagate the return value of
platform_get_irq on failure.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
 drivers/mmc/host/mxcmmc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index fb3ca82..f3c2832 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1014,8 +1014,10 @@ static int mxcmci_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
-		return -EINVAL;
+	if (irq < 0) {
+		dev_err(&pdev->dev, "failed to get IRQ: %d\n", irq);
+		return irq;
+	}
 
 	mmc = mmc_alloc_host(sizeof(*host), &pdev->dev);
 	if (!mmc)
-- 
2.5.0

^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2017-07-17  4:53 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-07-07  5:59 [PATCH] mmc: mxcmmc: fix error return code in mxcmci_probe() Gustavo A. R. Silva
2017-07-11 14:43 ` Ulf Hansson
2017-07-17  4:53   ` Gustavo A. R. Silva

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