Re: [PATCH 1/2] mmc: sdhci-iproc: handle mmc_of_parse() errors during probe
From: Adrian Hunter <adrian.hunter@intel.com>
Date: 2018-12-27 07:04:25
Also in:
linux-mmc, stable
On 23/12/18 10:59 PM, Stefan Wahren wrote:
We need to handle mmc_of_parse() errors during probe.
This finally fixes the wifi regression on Raspberry Pi 3 series.
In error case the wifi chip was permanently in reset because of
the power sequence depending on the deferred probe of the GPIO expander.
Fixes: b580c52d58d9 ("mmc: sdhci-iproc: add IPROC SDHCI driver")
Cc: stable@vger.kernel.org
Signed-off-by: Stefan Wahren <redacted>Acked-by: Adrian Hunter <adrian.hunter@intel.com>
quoted hunk ↗ jump to hunk
--- drivers/mmc/host/sdhci-iproc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c index 0db9905..9d12c06 100644 --- a/drivers/mmc/host/sdhci-iproc.c +++ b/drivers/mmc/host/sdhci-iproc.c@@ -296,7 +296,10 @@ static int sdhci_iproc_probe(struct platform_device *pdev) iproc_host->data = iproc_data; - mmc_of_parse(host->mmc); + ret = mmc_of_parse(host->mmc); + if (ret) + goto err; + sdhci_get_property(pdev); host->mmc->caps |= iproc_host->data->mmc_caps;
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