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| author | David Gould <david@optimisefitness.com> | 2012-09-11 15:32:47 +0100 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2012-09-11 10:30:31 -0700 |
| commit | bdee397d7c2345d467548ef9446a2a63b72c5449 (patch) | |
| tree | 71a4db98c94c786f0edb06839cc4c9b5cab40d98 /run-command.c | |
| parent | afe19ff7b55129d988e421ae1e0df4ec9659787a (diff) | |
| download | git-bdee397d7c2345d467548ef9446a2a63b72c5449.tar.gz git-bdee397d7c2345d467548ef9446a2a63b72c5449.tar.xz | |
run-command.c: fix broken list iteration in clear_child_for_cleanup
Iterate through children_to_clean using 'next' fields but with an
extra level of indirection. This allows us to update the chain when
we remove a child and saves us managing several variables around
the loop mechanism.
Signed-off-by: David Gould <david@optimisefitness.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'run-command.c')
| -rw-r--r-- | run-command.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/run-command.c b/run-command.c index 0204aaf7e..d1d58d3e2 100644 --- a/run-command.c +++ b/run-command.c @@ -49,13 +49,14 @@ static void mark_child_for_cleanup(pid_t pid) static void clear_child_for_cleanup(pid_t pid) { - struct child_to_clean **last, *p; + struct child_to_clean **pp; - last = &children_to_clean; - for (p = children_to_clean; p; p = p->next) { - if (p->pid == pid) { - *last = p->next; - free(p); + for (pp = &children_to_clean; *pp; pp = &(*pp)->next) { + struct child_to_clean *clean_me = *pp; + + if (clean_me->pid == pid) { + *pp = clean_me->next; + free(clean_me); return; } } |