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| author | levi.yun <yeoreum.yun@arm.com> | 2024-07-08 17:08:48 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-07-16 15:19:27 +0000 |
| commit | 690f13fcb4a7b74b30091c7067a18bb7971982d8 (patch) | |
| tree | a31f710d81c77f165756288bf9f2c679742cbef0 /ArmPlatformPkg/Drivers | |
| parent | f9c373c8388f819166e57365197bc423d56209a6 (diff) | |
| download | edk2-690f13fcb4a7b74b30091c7067a18bb7971982d8.tar.gz edk2-690f13fcb4a7b74b30091c7067a18bb7971982d8.tar.bz2 edk2-690f13fcb4a7b74b30091c7067a18bb7971982d8.zip | |
ArmPlatformPkg/Driver/PL061Gpio: Error checking for pin on release build
ASSERT_EFI_ERROR would be removed in release build.
This means it would trigger wrong behavior when invalid pin number given
to Get(), Set() and GetMode().
Adding error check routine for invalid pin number and before check the
pin number, check first other argument given to each function.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
Diffstat (limited to 'ArmPlatformPkg/Drivers')
| -rw-r--r-- | ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c b/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c index d87ab3d3de..fc062204c0 100644 --- a/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c +++ b/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c @@ -177,13 +177,16 @@ Get ( EFI_STATUS Status;
UINTN Index, Offset, RegisterBase;
- Status = PL061Locate (Gpio, &Index, &Offset, &RegisterBase);
- ASSERT_EFI_ERROR (Status);
-
if (Value == NULL) {
return EFI_INVALID_PARAMETER;
}
+ Status = PL061Locate (Gpio, &Index, &Offset, &RegisterBase);
+ if (EFI_ERROR (Status)) {
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+ }
+
if (PL061GetPins (RegisterBase, GPIO_PIN_MASK (Offset)) != 0) {
*Value = 1;
} else {
@@ -223,7 +226,10 @@ Set ( UINTN Index, Offset, RegisterBase;
Status = PL061Locate (Gpio, &Index, &Offset, &RegisterBase);
- ASSERT_EFI_ERROR (Status);
+ if (EFI_ERROR (Status)) {
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+ }
switch (Mode) {
case GPIO_MODE_INPUT:
@@ -285,14 +291,17 @@ GetMode ( EFI_STATUS Status;
UINTN Index, Offset, RegisterBase;
- Status = PL061Locate (Gpio, &Index, &Offset, &RegisterBase);
- ASSERT_EFI_ERROR (Status);
-
// Check for errors
if (Mode == NULL) {
return EFI_INVALID_PARAMETER;
}
+ Status = PL061Locate (Gpio, &Index, &Offset, &RegisterBase);
+ if (EFI_ERROR (Status)) {
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+ }
+
// Check if it is input or output
if (MmioRead8 (RegisterBase + PL061_GPIO_DIR_REG) & GPIO_PIN_MASK (Offset)) {
// Pin set to output
|