Unsigned expressions cannot be lesser than zero. Presence of comparisons
'unsigned (<|<=|>|>=) 0' often indicates a bug, usually wrong type of variable.
The patch beside finding such comparisons tries to eliminate false positives,
mainly by bypassing range checks.
gcc can detect such comparisons also using -Wtype-limits switch, but it warns
also in correct cases, making too much noise.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.com>
The original version only considered the case where the then branch
contains only one call to PTR_ERR. Reimplement the whole thing to allow
multiple calls, with potentially different arguments.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
spatch has changed its option scheme.
E.g., --no_show_diff is now --no-show-diff
This patch updates:
- scripts/coccicheck
- Semantic patches under scripts/coccinelle/
Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Andrzej Hajda