[coreboot-gerrit] Change in coreboot[master]: drivers/spi/flashconsole: Re-add NULL checks

[Patrick Georgi (Code Review)]

Patrick Georgi has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37375 )

Change subject: drivers/spi/flashconsole: Re-add NULL checks
......................................................................

drivers/spi/flashconsole: Re-add NULL checks

Change-Id: I5a90ea9aa3dd510beb6941b000d081944d5a2b95
Signed-off-by: Patrick Georgi 
---
M src/drivers/spi/flashconsole.c
1 file changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/75/37375/1

diff --git a/src/drivers/spi/flashconsole.c b/src/drivers/spi/flashconsole.c
index afe3492..98f3cb4 100644
--- a/src/drivers/spi/flashconsole.c
+++ b/src/drivers/spi/flashconsole.c
@@ -81,6 +81,9 @@

void flashconsole_tx_byte(unsigned char c)
 {
+	if (!rdev_ptr)
+		return;
+
    size_t region_size = region_device_sz(rdev_ptr);

line_buffer[line_offset++] = c;
@@ -104,6 +107,9 @@
    if (busy)
    	return;

+	if (!rdev_ptr)
+		return;
+
    busy = 1;
    region_size = region_device_sz(rdev_ptr);
    if (offset + len >= region_size)