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| author | Jacob Garber <jgarber1@ualberta.ca> | 2020-02-01 13:04:11 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-02-03 16:44:57 +0000 |
| commit | 4519277ca2e11ed728754efbe13e1a444c479da3 (patch) | |
| tree | c8bcf6f104188b16611a1257b2a1c5dcc683785d | |
| parent | e127a8711f71067979211d53d4b855a353344f50 (diff) | |
| download | coreboot-4519277ca2e11ed728754efbe13e1a444c479da3.tar.xz | |
drivers/generic/gfx: Add null pointer error check
acpi_device_scope() will return NULL if it is unable to find the path
of the parent device. Return early if this is the case to prevent a null
pointer dereference.
Change-Id: I3eff1c1e3477c75c7130b52898de7d59692ba412
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Found-by: Coverity CID 1409672
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38669
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/drivers/generic/gfx/gfx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/drivers/generic/gfx/gfx.c b/src/drivers/generic/gfx/gfx.c index b2bda4a43c..0386e9b2ef 100644 --- a/src/drivers/generic/gfx/gfx.c +++ b/src/drivers/generic/gfx/gfx.c @@ -69,6 +69,9 @@ static void gfx_fill_ssdt_generator(struct device *dev) const char *scope = acpi_device_scope(dev); + if (!scope) + return; + acpigen_write_scope(scope); /* Method (_DOD, 0) */ |