[coreboot-gerrit] Change in coreboot[master]: drivers/i2c/generic: Encure config is not NULL before accessing it

[Furquan Shaikh (Code Review)]

Furquan Shaikh has uploaded this change for review. ( https://review.coreboot.org/27009

Change subject: drivers/i2c/generic: Encure config is not NULL before accessing it
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drivers/i2c/generic: Encure config is not NULL before accessing it

This change checks to ensure that config is not NULL before it is
accessed for the first time.

Reported by: Coverity CID #1393312

Change-Id: Ic248c79783da9c2bfdf3b7f737e5963feff7558c
Signed-off-by: Furquan Shaikh 
---
M src/drivers/i2c/generic/generic.c
1 file changed, 4 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/27009/1

diff --git a/src/drivers/i2c/generic/generic.c b/src/drivers/i2c/generic/generic.c
index 7f1ce16..1b12df5 100644
--- a/src/drivers/i2c/generic/generic.c
+++ b/src/drivers/i2c/generic/generic.c
@@ -202,6 +202,9 @@
 {
    struct drivers_i2c_generic_config *config = dev->chip_info;

+	if (!config)
+		return;
+
    /* Check if device is present by reading GPIO */
    if (config->device_present_gpio) {
    	int present = gpio_get(config->device_present_gpio);
@@ -219,9 +222,8 @@
    dev->ops = &i2c_generic_ops;

/* Name the device as per description provided in devicetree */
-	if (config && config->desc) {
+	if (config->desc)
    	dev->name = config->desc;
-	}
 }

struct chip_operations drivers_i2c_generic_ops = {