This is a note to let you know that I've just added the patch titled iio: pressure: bmp280: Fix NULL pointer exception 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: iio-pressure-bmp280-fix-null-pointer-exception.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 <stable@xxxxxxxxxxxxxxx> know about it. >From 85dfb43bf69281adb1f345dfd9a39faf2e5a718d Mon Sep 17 00:00:00 2001 From: Phil Elwell <phil@xxxxxxxxxxxxxxx> Date: Fri, 11 Aug 2023 16:58:29 +0100 Subject: iio: pressure: bmp280: Fix NULL pointer exception From: Phil Elwell <phil@xxxxxxxxxxxxxxx> commit 85dfb43bf69281adb1f345dfd9a39faf2e5a718d upstream. The bmp085 EOC IRQ support is optional, but the driver's common probe function queries the IRQ properties whether or not it exists, which can trigger a NULL pointer exception. Avoid any exception by making the query conditional on the possession of a valid IRQ. Fixes: aae953949651 ("iio: pressure: bmp280: add support for BMP085 EOC interrupt") Signed-off-by: Phil Elwell <phil@xxxxxxxxxxxxxxx> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230811155829.51208-1-phil@xxxxxxxxxxxxxxx Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/iio/pressure/bmp280-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -1050,7 +1050,7 @@ int bmp280_common_probe(struct device *d * however as it happens, the BMP085 shares the chip ID of BMP180 * so we look for an IRQ if we have that. */ - if (irq > 0 || (chip_id == BMP180_CHIP_ID)) { + if (irq > 0 && (chip_id == BMP180_CHIP_ID)) { ret = bmp085_fetch_eoc_irq(dev, name, irq, data); if (ret) goto out_disable_vdda; Patches currently in stable-queue which might be from phil@xxxxxxxxxxxxxxx are queue-4.14/iio-pressure-bmp280-fix-null-pointer-exception.patch