firmware: smci: possible NULL dereference
sandbox_scmi_devices_ctx() may return NULL. We should not dereference this
value in sandbox_scmi_devices_remove().
The problem was indicated by 'gcc-11 -fanalyzer'.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/firmware/scmi/sandbox-scmi_devices.c b/drivers/firmware/scmi/sandbox-scmi_devices.c
index 414da6f..1a6fafb 100644
--- a/drivers/firmware/scmi/sandbox-scmi_devices.c
+++ b/drivers/firmware/scmi/sandbox-scmi_devices.c
@@ -50,6 +50,9 @@
int ret = 0;
size_t n;
+ if (!devices)
+ return 0;
+
for (n = 0; n < SCMI_TEST_DEVICES_RD_COUNT; n++) {
int ret2 = reset_free(devices->reset + n);