Commit Graph

5 Commits

Author SHA1 Message Date
Andrzej Hajda 3f984cb399 coccinelle: tests: unsigned value cannot be lesser than zero
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>
2016-01-12 17:47:47 +01:00
Julia Lawall 02da7b4277 coccinelle: tests: improve odd_ptr_err.cocci
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>
2015-10-26 20:54:28 +01:00
Nicolas Palix 93f1446849 Coccinelle: Update the options used to the new option scheme
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>
2013-07-03 22:58:13 +02:00
Julia Lawall e8fa600e06 scripts/coccinelle/tests/odd_ptr_err.cocci: semantic patch for IS_ERR/PTR_ERR inconsistency
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-10-11 14:50:51 +02:00
Julia Lawall 97c1cf8fdb Coccinelle: Find doubled arguments to boolean or bit operators.
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Nicolas Palix <npalix.work@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-28 00:32:23 +02:00