[S] Change in coreboot[master]: arch/x86/smbios: Check str for NULL in smbios_add_string()

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/73980 )

(

2 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: arch/x86/smbios: Check str for NULL in smbios_add_string()
......................................................................

arch/x86/smbios: Check str for NULL in smbios_add_string()

Signed-off-by: Maximilian Brune 
Change-Id: Ic228b869aea362c1f07e0808c2735ff3b285a6bd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73980
Reviewed-by: Eric Lai 
Tested-by: build bot (Jenkins) 
Reviewed-by: Paul Menzel 
---
M src/arch/x86/smbios.c
1 file changed, 15 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Paul Menzel: Looks good to me, but someone else must approve
  Eric Lai: Looks good to me, approved

diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c
index 188fb42..1ec0ad2 100644
--- a/src/arch/x86/smbios.c
+++ b/src/arch/x86/smbios.c
@@ -45,7 +45,7 @@
     * Return 0 as required for empty strings.
     * See Section 6.1.3 "Text Strings" of the SMBIOS specification.
     */
-	if (*str == '\0')
+	if (str == NULL || *str == '\0')
    	return 0;

for (;;) {