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| 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/Pci | |
| parent | ce8e582c06ef3d82b1df93a7de289ef7d9905c4a (diff) | |
| download | edk2-54228046533720f0e8282be15eea7aafaf0cd0d6.zip edk2-54228046533720f0e8282be15eea7aafaf0cd0d6.tar.gz edk2-54228046533720f0e8282be15eea7aafaf0cd0d6.tar.bz2 | |
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/Pci')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c index ccbf355..aa75aa8 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;
}
|