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authorAngel Pons <th3fanbus@gmail.com>2021-07-13 19:08:31 +0200
committerTim Wawrzynczak <twawrzynczak@chromium.org>2021-07-14 21:26:47 +0000
commitdd405bc018e3730d0afddfd1cc5f18c6d5fd9794 (patch)
tree985c2d19cfc877aaea6e2381b8dd0bf451b14c69 /src/drivers/usb
parentafab34c3720f673a7edebefe6615ff622253d93e (diff)
drivers/usb/acpi: Avoid dereferencing maybe-NULL pointer
Do not dereference a pointer before checking whether it is NULL. Change-Id: Icbe9ae99d91fd587d8e56cf3a0dcb59834ee6d07 Found-by: Coverity CID 1458232 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/56266 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/drivers/usb')
-rw-r--r--src/drivers/usb/acpi/usb_acpi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/drivers/usb/acpi/usb_acpi.c b/src/drivers/usb/acpi/usb_acpi.c
index 8ada939138..fb9f7f198f 100644
--- a/src/drivers/usb/acpi/usb_acpi.c
+++ b/src/drivers/usb/acpi/usb_acpi.c
@@ -125,12 +125,13 @@ struct chip_operations drivers_usb_acpi_ops = {
bool usb_acpi_get_pld(const struct device *usb_device, struct acpi_pld *pld)
{
- struct drivers_usb_acpi_config *config = usb_device->chip_info;
+ struct drivers_usb_acpi_config *config;
if (!usb_device || !usb_device->chip_info ||
usb_device->chip_ops != &drivers_usb_acpi_ops)
return false;
+ config = usb_device->chip_info;
if (config->use_custom_pld)
*pld = config->custom_pld;
else