diff options
| author | Christophe Leroy <[email protected]> | 2021-11-26 18:06:46 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2021-12-03 14:30:05 +0100 |
| commit | 33dc3e3e99e626ce51f462d883b05856c6c30b1d (patch) | |
| tree | 2cc80ca267e8713efbc6f0bdc0eb09e5b0995f50 /tools/perf/scripts/python/flamegraph.py | |
| parent | 09184ae9b5756cc469db6fd1d1cfdcffbf627c2d (diff) | |
w1: Misuse of get_user()/put_user() reported by sparse
sparse warnings: (new ones prefixed by >>)
>> drivers/w1/slaves/w1_ds28e04.c:342:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char [noderef] __user *_pu_addr @@ got char *buf @@
drivers/w1/slaves/w1_ds28e04.c:342:13: sparse: expected char [noderef] __user *_pu_addr
drivers/w1/slaves/w1_ds28e04.c:342:13: sparse: got char *buf
>> drivers/w1/slaves/w1_ds28e04.c:356:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char const [noderef] __user *_gu_addr @@ got char const *buf @@
drivers/w1/slaves/w1_ds28e04.c:356:13: sparse: expected char const [noderef] __user *_gu_addr
drivers/w1/slaves/w1_ds28e04.c:356:13: sparse: got char const *buf
The buffer buf is a failsafe buffer in kernel space, it's not user
memory hence doesn't deserve the use of get_user() or put_user().
Access 'buf' content directly.
Link: https://lore.kernel.org/lkml/[email protected]/T/
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Christophe Leroy <[email protected]>
Link: https://lore.kernel.org/r/d14ed8d71ad4372e6839ae427f91441d3ba0e94d.1637946316.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions