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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 <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/21408
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Pratik Prajapati 2017-09-05 12:27:33 -07:00 committed by Aaron Durbin
parent 2be64048c1
commit 6dc148a42b
1 changed files with 11 additions and 0 deletions
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11
src/soc/intel/common/block/sgx/sgx.c
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@ -41,8 +41,14 @@ void prmrr_core_configure(void)
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 @@ void sgx_configure(void)
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;