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firmware: smci: possible NULL dereference

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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>
This commit is contained in:
Heinrich Schuchardt 2021-02-01 03:01:54 +01:00 committed by Simon Glass
parent c30a7093e8
commit 6f5edbaf93
1 changed files with 3 additions and 0 deletions
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3
drivers/firmware/scmi/sandbox-scmi_devices.c
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@ -50,6 +50,9 @@ static int sandbox_scmi_devices_remove(struct udevice *dev)
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);