[coreboot-gerrit] Change in coreboot[master]: soc/intel/common/sgx: Fix null pointer dereference warning from klocwork

[Pratikkumar V Prajapati (Code Review)]

Pratikkumar V Prajapati has uploaded this change for review. ( https://review.coreboot.org/21408

Change subject: soc/intel/common/sgx: Fix null pointer dereference warning from klocwork
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soc/intel/common/sgx: Fix null pointer dereference warning from klocwork

Fix the warnings of klocwork scan.
e.g. "Pointer 'dev' checked for NULL at line 158 will be dereferenced at line 159"

Change-Id: I6cc9c68652b074c666c86456183460ca38a886ed
Signed-off-by: Pratik Prajapati 
---
M src/soc/intel/common/block/sgx/sgx.c
1 file changed, 11 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/08/21408/1

diff --git a/src/soc/intel/common/block/sgx/sgx.c b/src/soc/intel/common/block/sgx/sgx.c
index da84ea6..ec1b638 100644
--- a/src/soc/intel/common/block/sgx/sgx.c
+++ b/src/soc/intel/common/block/sgx/sgx.c
@@ -41,7 +41,13 @@
    msr_t prmrr_mask;
    msr_t msr;
    device_t dev = SA_DEV_ROOT;
+	assert(dev != NULL);
    config_t *conf = dev->chip_info;
+
+	if (!conf) {
+		printk(BIOS_ERR, "SGX: failed to get chip_info\n");
+		return;
+	}

if (!conf->sgx_enable || !is_sgx_supported())
    	return;
@@ -159,6 +165,11 @@
    config_t *conf = dev->chip_info;
    const void *microcode_patch = intel_mp_current_microcode();

+	if (!conf) {
+		printk(BIOS_ERR, "SGX: failed to get chip_info\n");
+		return;
+	}
+
    if (!conf->sgx_enable || !is_sgx_supported() || !is_prmrr_set()) {
    	printk(BIOS_ERR, "SGX: pre-conditions not met\n");
    	return;