diff options
| author | Stefan Wahren <stefan.wahren@i2se.com> | 2018-12-23 21:59:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-06 17:33:29 +0100 |
| commit | 686ef4545a8427e040a2719485c8854e25430a0e (patch) | |
| tree | 16ab93e731861c5707110d2b9ae79b688e5050b7 /drivers/mmc | |
| parent | 3003149c6552bfdca41854854918927eeac19e43 (diff) | |
mmc: sdhci-iproc: handle mmc_of_parse() errors during probe
commit 2bd44dadd5bfb4135162322fd0b45a174d4ad5bf upstream.
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 <stefan.wahren@i2se.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-iproc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c index 524c8e0b72fd..40bdeca6d692 100644 --- a/drivers/mmc/host/sdhci-iproc.c +++ b/drivers/mmc/host/sdhci-iproc.c @@ -242,7 +242,10 @@ 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_of_property(pdev); host->mmc->caps |= iproc_host->data->mmc_caps; |