diff options
| author | Jacob Garber <jgarber1@ualberta.ca> | 2019-03-21 14:20:21 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-04-08 14:12:59 +0000 |
| commit | 42660cdda7020ab7056f219e9033c9d0f2f09239 (patch) | |
| tree | 63b72b518423b0ba1dd32c6a7afee989ab7548bb /src/northbridge | |
| parent | a12e9b0666e1a22958ea1fae87199a8b82266ee7 (diff) | |
| download | coreboot-42660cdda7020ab7056f219e9033c9d0f2f09239.tar.xz | |
nb/amd/pi, mb/amd/bettong: Fix null pointer checks
The dev pointers were being dereferenced before the null
check. Move the checks so they are done earlier.
Found-by: Coverity Scan, CID 1241851 (REVERSE_INULL)
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Change-Id: Ie578787c3c26a1f3acb4567c135486667e88a888
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32022
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/amd/pi/00630F01/dimmSpd.c | 6 | ||||
| -rw-r--r-- | src/northbridge/amd/pi/00660F01/dimmSpd.c | 7 | ||||
| -rw-r--r-- | src/northbridge/amd/pi/00730F01/dimmSpd.c | 6 |
3 files changed, 16 insertions, 3 deletions
diff --git a/src/northbridge/amd/pi/00630F01/dimmSpd.c b/src/northbridge/amd/pi/00630F01/dimmSpd.c index f958b01b3c..845dad19a0 100644 --- a/src/northbridge/amd/pi/00630F01/dimmSpd.c +++ b/src/northbridge/amd/pi/00630F01/dimmSpd.c @@ -28,9 +28,13 @@ AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINTN unused2, AGESA_READ_SPD_PAR { int spdAddress; DEVTREE_CONST struct device *dev = pcidev_on_root(0x18, 2); + + if (dev == NULL) + return AGESA_ERROR; + DEVTREE_CONST struct northbridge_amd_pi_00630F01_config *config = dev->chip_info; - if ((dev == 0) || (config == 0)) + if (config == NULL) return AGESA_ERROR; if (info->SocketId >= ARRAY_SIZE(config->spdAddrLookup)) diff --git a/src/northbridge/amd/pi/00660F01/dimmSpd.c b/src/northbridge/amd/pi/00660F01/dimmSpd.c index 0de7654532..349dacf4f4 100644 --- a/src/northbridge/amd/pi/00660F01/dimmSpd.c +++ b/src/northbridge/amd/pi/00660F01/dimmSpd.c @@ -27,10 +27,15 @@ AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINTN unused2, AGESA_READ_SPD_PAR { int spdAddress; DEVTREE_CONST struct device *dev = pcidev_on_root(0x18, 2); + + if (dev == NULL) + return AGESA_ERROR; + DEVTREE_CONST struct northbridge_amd_pi_00660F01_config *config = dev->chip_info; - if ((dev == 0) || (config == 0)) + if (config == NULL) return AGESA_ERROR; + if (info->SocketId >= ARRAY_SIZE(config->spdAddrLookup)) return AGESA_ERROR; if (info->MemChannelId >= ARRAY_SIZE(config->spdAddrLookup[0])) diff --git a/src/northbridge/amd/pi/00730F01/dimmSpd.c b/src/northbridge/amd/pi/00730F01/dimmSpd.c index 79e046e3e4..bbcac9079f 100644 --- a/src/northbridge/amd/pi/00730F01/dimmSpd.c +++ b/src/northbridge/amd/pi/00730F01/dimmSpd.c @@ -28,9 +28,13 @@ AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINTN unused2, AGESA_READ_SPD_PAR { int spdAddress; DEVTREE_CONST struct device *dev = pcidev_on_root(0x18, 2); + + if (dev == NULL) + return AGESA_ERROR; + DEVTREE_CONST struct northbridge_amd_pi_00730F01_config *config = dev->chip_info; - if ((dev == 0) || (config == 0)) + if (config == NULL) return AGESA_ERROR; if (info->SocketId >= ARRAY_SIZE(config->spdAddrLookup)) |