dmi: Correctly check for ERROR_PTR
For the physmap*() functions, NULL is considered valid return value.
Fixes a segmentation fault when DMI tables can't be mapped.
Tested on intel/eblake board with broken coreboot.
Change-Id: Ic403c2940c2b91acbd113f0acfa3ce9ef6c6bb6c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/62611
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/67875
Reviewed-by: Felix Singer <felixsinger@posteo.net>
diff --git a/dmi.c b/dmi.c
index c44221c..7488d61 100644
--- a/dmi.c
+++ b/dmi.c
@@ -164,7 +164,7 @@
unsigned int i = 0, j = 0;
uint8_t *dmi_table_mem = physmap_ro("DMI Table", base, len);
- if (dmi_table_mem == NULL) {
+ if (dmi_table_mem == ERROR_PTR) {
msg_perr("Unable to access DMI Table\n");
return;
}