Re: [PATCH] mmc: mxcmmc: fix error return code in mxcmci_probe()

From: Gustavo A. R. Silva
Date: Mon Jul 17 2017 - 00:53:32 EST


Hi Ulf,

On 07/11/2017 09:43 AM, Ulf Hansson wrote:
On 7 July 2017 at 07:59, Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx> wrote:
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@xxxxxxxxxxxxxx>

Thanks, applied for next!


Thank you!

Kind regards
Uffe

---
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


--
Gustavo A. R. Silva