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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-03-07 15:59:28 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-03-14 20:31:12 -0300 |
| commit | 6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75 (patch) | |
| tree | ae35da5c9f501ecd01761ffdd299d99d1e9e9976 /scripts/gdb/linux/proc.py | |
| parent | 73f7e05609ece4030f2745c4c0c01e0be6889590 (diff) | |
RDMA/irdma: Prevent some integer underflows
My static checker complains that:
drivers/infiniband/hw/irdma/ctrl.c:3605 irdma_sc_ceq_init()
warn: can subtract underflow 'info->dev->hmc_fpm_misc.max_ceqs'?
It appears that "info->dev->hmc_fpm_misc.max_ceqs" comes from the firmware
in irdma_sc_parse_fpm_query_buf() so, yes, there is a chance that it could
be zero. Even if we trust the firmware, it's easy enough to change the
condition just as a hardenning measure.
Fixes: 3f49d6842569 ("RDMA/irdma: Implement HW Admin Queue OPs")
Link: https://lore.kernel.org/r/20220307125928.GE16710@kili
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'scripts/gdb/linux/proc.py')
0 files changed, 0 insertions, 0 deletions