diff options
| author | Rui Miguel Silva <rui.silva@linaro.org> | 2021-08-19 19:09:28 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-26 13:30:39 +0200 |
| commit | 7d1d3882fd9da1ee42fe3ad3a5ffd41fb8204380 (patch) | |
| tree | 27eca31813a36cd5ff0e9ea1c1297fec7d284311 /tools/perf/scripts/python/flamegraph.py | |
| parent | 5e4cd1b6556302fe6a457e525c256cbef3563543 (diff) | |
usb: isp1760: do not shift in uninitialized slot
Even though it is not expected, and would trigger a WARN_ON, killing a
transfer in a uninitialized slot this sequence is warned by clang
analyzer, twice:
drivers/usb/isp1760/isp1760-hcd.c:1976:18: warning: The result of the left shift is undefined because the right operand is negative [clang-analyzer-core.UndefinedBinaryOperatorResult]
skip_map |= (1 << qh->slot);
drivers/usb/isp1760/isp1760-hcd.c:1983:18: warning: The result of the left shift is undefined because the right operand is negative [clang-analyzer-core.UndefinedBinaryOperatorResult]
skip_map |= (1 << qh->slot);
Only set skip map if slot is active.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20210819180929.1327349-5-rui.silva@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions