[PATCH v3 0/8] use 64-bit arithmetic instead of 32-bit
Gustavo A. R. Silva
gustavo at embeddedor.com
Tue Feb 6 08:46:49 PST 2018
Add suffix LL and ULL to various constants in order to give the compiler
complete information about the proper arithmetic to use. Such constants
are used in contexts that expect expressions of type u64 (64 bits, unsigned)
and s64 (64 bits, signed).
The mentioned expressions are currently being evaluated using 32-bit
arithmetic, wich in some cases can lead to unintentional integer
This patchset addresses the following "Unintentional integer overflow"
CIDs: 200604, 1056807, 1056808, 1271223, 1324146
CIDs: 1392628, 1392630, 1446589, 1454996, 1458347
Changes in v2:
- Update subject and changelog to better reflect the proposed code changes.
- Add suffix ULL and LL to constants instead of casting variables.
- Extend the proposed code changes to other similar cases that had not
previously been considered in v1 of this patchset.
Changes in v3:
- Mention the specific Coverity report in all commit messages.
Gustavo A. R. Silva (8):
rtl2832: use 64-bit arithmetic instead of 32-bit in
dvb-frontends: ves1820: use 64-bit arithmetic instead of 32-bit
i2c: max2175: use 64-bit arithmetic instead of 32-bit
i2c: ov9650: use 64-bit arithmetic instead of 32-bit
pci: cx88-input: use 64-bit arithmetic instead of 32-bit
rockchip/rga: use 64-bit arithmetic instead of 32-bit
platform: sh_veu: use 64-bit arithmetic instead of 32-bit
platform: vivid-cec: use 64-bit arithmetic instead of 32-bit
drivers/media/dvb-frontends/rtl2832.c | 4 ++--
drivers/media/dvb-frontends/ves1820.c | 2 +-
drivers/media/i2c/max2175.c | 2 +-
drivers/media/i2c/ov9650.c | 9 +++++----
drivers/media/pci/cx88/cx88-input.c | 4 ++--
drivers/media/platform/rockchip/rga/rga-buf.c | 3 ++-
drivers/media/platform/sh_veu.c | 4 ++--
drivers/media/platform/vivid/vivid-cec.c | 11 +++++++++--
8 files changed, 24 insertions(+), 15 deletions(-)
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