patch "iio: adc: men_z188_adc: Fix a resource leak in an error handling path" added to char-misc-linus

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

iio: adc: men_z188_adc: Fix a resource leak in an error handling path

to my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From e0a2e37f303828d030a83f33ffe14b36cb88d563 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <[email protected]>
Date: Sat, 29 Jan 2022 09:32:47 +0100
Subject: iio: adc: men_z188_adc: Fix a resource leak in an error handling path

If iio_device_register() fails, a previous ioremap() is left unbalanced.

Update the error handling path and add the missing iounmap() call, as already done in the remove function.

---
 drivers/iio/adc/men_z188_adc.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

index 42ea8bc7e780..adc5ceaef8c9 100644
@@ -103,6 +103,7 @@ static int men_z188_probe(struct mcb_device *dev,
 	struct z188_adc *adc;
 	struct iio_dev *indio_dev;
 	struct resource *mem;
+	int ret;
 
 	indio_dev = devm_iio_device_alloc(&dev->dev, sizeof(struct z188_adc));
 	if (!indio_dev)

@@ -128,8 +129,14 @@ static int men_z188_probe(struct mcb_device *dev,
 	adc->mem = mem;
 	mcb_set_drvdata(dev, indio_dev);
 
-	return iio_device_register(indio_dev);
+	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto err_unmap;
+
+	return 0;
 
+err_unmap:
+	iounmap(adc->base);
 err:
 	mcb_release_mem(mem);
 	return -ENXIO;

2.35.1