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Patch "mmc: tmio: check mmc_regulator_get_supply return value" has been added to the 4.14-stable tree

PATCH [email protected] 1 participant 1 message Dec 6, 2017

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This is a note to let you know that I've just added the patch titled

mmc: tmio: check mmc_regulator_get_supply return value

to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mmc-tmio-check-mmc_regulator_get_supply-return-value.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From foo@baz Wed Dec 6 18:04:41 CET 2017

From: Fabrizio Castro <[email protected]>
Date: Fri, 22 Sep 2017 12:22:17 +0100
Subject: mmc: tmio: check mmc_regulator_get_supply return value

From: Fabrizio Castro <[email protected]>

[ Upstream commit a3d95d1d4007b1fefd6d8b12db26fda05de05cfb ]

mmc_regulator_get_supply returns -EPROBE_DEFER if either vmmc or vqmmc regulators had their probing deferred.
vqmmc regulator is needed by UHS to work properly, therefore this patch checks the value returned by mmc_regulator_get_supply to make sure we have a reference to both vmmc and vqmmc (if found in the DT).

---
 drivers/mmc/host/tmio_mmc_core.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
drivers/mmc/host/tmio_mmc_core.c +4 -1
@@ -1113,8 +1113,11 @@ static int tmio_mmc_init_ocr(struct tmio
 {
 	struct tmio_mmc_data *pdata = host->pdata;
 	struct mmc_host *mmc = host->mmc;
+	int err;
 
-	mmc_regulator_get_supply(mmc);
+	err = mmc_regulator_get_supply(mmc);
+	if (err)
+		return err;
 
 	/* use ocr_mask if no regulator */
 	if (!mmc->ocr_avail)

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/mmc-tmio-check-mmc_regulator_get_supply-return-value.patch