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git/contrib/coccinelle/free.cocci

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remove unnecessary NULL check before free(3) free(3) handles NULL pointers just fine. Add a semantic patch for removing unnecessary NULL checks before calling this function, and apply it on the code base. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years ago
@@
expression E;
@@
- if (E)
free(E);
cocci: detect useless free(3) calls Add a semantic patch for removing checks that cause free(3) to only be called with a NULL pointer, as that must be a programming mistake. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years ago
@@
expression E;
@@
- if (!E)
free(E);
coccinelle: add a rule to make "type" code use FREE_AND_NULL() Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years ago
coccinelle: add a rule to make "expression" code use FREE_AND_NULL() A follow-up to the existing "type" rule added in an earlier change. This catches some occurrences that are missed by the previous rule. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years ago
@@
expression E;
@@
- free(E);
+ FREE_AND_NULL(E);
coccinelle: polish FREE_AND_NULL rules There are two rules for using FREE_AND_NULL in free.cocci, one for pointer types and one for expressions. Both cause coccinelle to remove empty lines and even newline characters between replacements for some reason; consecutive "free(x);/x=NULL;" sequences end up as multiple FREE_AND_NULL calls on the same time. Remove the type rule, as the expression rule already covers it, and rearrange the lines of the latter to place the addition of FREE_AND_NULL between the removals, which causes coccinelle to leave surrounding whitespace untouched. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years ago
- E = NULL;