[coreboot-gerrit] Change in ...coreboot[master]: lib/edid.c: Dump EDID breakdown after null check

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change and it was merged. ( https://review.coreboot.org/c/coreboot/+/32055 )

Change subject: lib/edid.c: Dump EDID breakdown after null check
......................................................................

lib/edid.c: Dump EDID breakdown after null check

The edid variable was being dereferenced before the null check. Split
off the null check to before dumping and update the error message.

Fixes CID 1370576 (REVERSE_INULL)

Signed-off-by: Jacob Garber 
Change-Id: I8fe3d911df3a11a873056d3a5c05c5a3cbcfe2c0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32055
Tested-by: build bot (Jenkins) 
Reviewed-by: Edward O'Callaghan 
---
M src/lib/edid.c
1 file changed, 8 insertions(+), 3 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Edward O'Callaghan: Looks good to me, approved

diff --git a/src/lib/edid.c b/src/lib/edid.c
index 553b0a2..5925759 100644
--- a/src/lib/edid.c
+++ b/src/lib/edid.c
@@ -1138,11 +1138,16 @@
        .conformant = EDID_CONFORMANT,
    };

-	dump_breakdown(edid);
-
    memset(out, 0, sizeof(*out));

-	if (!edid || memcmp(edid, "\x00\xFF\xFF\xFF\xFF\xFF\xFF\x00", 8)) {
+	if (!edid) {
+		printk(BIOS_SPEW, "No EDID found\n");
+		return EDID_ABSENT;
+	}
+
+	dump_breakdown(edid);
+
+	if (memcmp(edid, "\x00\xFF\xFF\xFF\xFF\xFF\xFF\x00", 8)) {
    	printk(BIOS_SPEW, "No header found\n");
    	return EDID_ABSENT;
    }