diff options
| author | Hao Wu <hao.a.wu@intel.com> | 2017-01-05 09:43:21 +0800 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2017-02-21 09:26:08 +0800 |
| commit | 54228046533720f0e8282be15eea7aafaf0cd0d6 (patch) | |
| tree | 79587bb4a30e33186783f6947dc13b71e80fc964 /MdeModulePkg/Bus | |
| parent | ce8e582c06ef3d82b1df93a7de289ef7d9905c4a (diff) | |
| download | edk2-platforms-54228046533720f0e8282be15eea7aafaf0cd0d6.tar.xz | |
MdeModulePkg/SdMmc: Avoid assigning 0 to the BlockSize of Trb
Refine code to avoid potential divide by zero when calculating block
number.
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Diffstat (limited to 'MdeModulePkg/Bus')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c | 4 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Sd/EmmcBlockIoPei/EmmcHci.c | 4 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c | 4 |
3 files changed, 6 insertions, 6 deletions
diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c index ccbf355016..aa75aa8d24 100644 --- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c +++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c @@ -4,7 +4,7 @@ It would expose EFI_SD_MMC_PASS_THRU_PROTOCOL for upper layer use.
- Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -1265,7 +1265,7 @@ SdMmcCreateTrb ( goto Error;
}
- if (Trb->DataLen < Trb->BlockSize) {
+ if ((Trb->DataLen != 0) && (Trb->DataLen < Trb->BlockSize)) {
Trb->BlockSize = (UINT16)Trb->DataLen;
}
diff --git a/MdeModulePkg/Bus/Sd/EmmcBlockIoPei/EmmcHci.c b/MdeModulePkg/Bus/Sd/EmmcBlockIoPei/EmmcHci.c index 5a9e0b2f14..2c0baca3e3 100644 --- a/MdeModulePkg/Bus/Sd/EmmcBlockIoPei/EmmcHci.c +++ b/MdeModulePkg/Bus/Sd/EmmcBlockIoPei/EmmcHci.c @@ -1,6 +1,6 @@ /** @file
- Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -1032,7 +1032,7 @@ EmmcPeimCreateTrb ( goto Error;
}
- if (Trb->DataLen < Trb->BlockSize) {
+ if ((Trb->DataLen != 0) && (Trb->DataLen < Trb->BlockSize)) {
Trb->BlockSize = (UINT16)Trb->DataLen;
}
diff --git a/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c b/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c index 72efd56d48..23e6563d49 100644 --- a/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c +++ b/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdHci.c @@ -1,6 +1,6 @@ /** @file
- Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -1032,7 +1032,7 @@ SdPeimCreateTrb ( goto Error;
}
- if (Trb->DataLen < Trb->BlockSize) {
+ if ((Trb->DataLen != 0) && (Trb->DataLen < Trb->BlockSize)) {
Trb->BlockSize = (UINT16)Trb->DataLen;
}
|