From: Liang He Date: Fri, 16 Sep 2022 15:47:08 +0000 (+0800) Subject: hwmon: (gsc-hwmon) Call of_node_get() before of_find_xxx API X-Git-Tag: v5.15.79~985 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3281e81ce90cbf1a6723d9c29477fd24fdc1981e;p=platform%2Fkernel%2Flinux-rpi.git hwmon: (gsc-hwmon) Call of_node_get() before of_find_xxx API commit 7f62cf781e6567d59c8935dc8c6068ce2bb904b7 upstream. In gsc_hwmon_get_devtree_pdata(), we should call of_node_get() before the of_find_compatible_node() which will automatically call of_node_put() for the 'from' argument. Fixes: 3bce5377ef66 ("hwmon: Add Gateworks System Controller support") Signed-off-by: Liang He Co-developed-by: Mengda Chen Signed-off-by: Mengda Chen Link: https://lore.kernel.org/r/20220916154708.3084515-1-chenmengda2009@163.com Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/hwmon/gsc-hwmon.c b/drivers/hwmon/gsc-hwmon.c index 1fe3741..f29ce49 100644 --- a/drivers/hwmon/gsc-hwmon.c +++ b/drivers/hwmon/gsc-hwmon.c @@ -267,6 +267,7 @@ gsc_hwmon_get_devtree_pdata(struct device *dev) pdata->nchannels = nchannels; /* fan controller base address */ + of_node_get(dev->parent->of_node); fan = of_find_compatible_node(dev->parent->of_node, NULL, "gw,gsc-fan"); if (fan && of_property_read_u32(fan, "reg", &pdata->fan_base)) { dev_err(dev, "fan node without base\n");