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builder: fix calls to builder_add that are not terminated by NULL

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spa_pod_builder_add() is a va_args function that is terminated by a NULL
argument. The last argument must be a pointer type, because otherwise
checking for a NULL pointer can fail.

The __attribute__((__sentinel__)) prints a compiler warning, if the last
argument of a call to spa_pod_builder_add() is not a pointer type.

Fix all sentinel warnings by replacing all integer type 0 with pointer
type NULL in calls to spa_pod_builder_add().
This commit is contained in:
Michael Tretter 2019-07-05 12:57:55 +02:00 • committed by Wim Taymans
parent 4350bd624f
commit 39c01ba2fe
6 changed files with 32 additions and 31 deletions
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3
spa/include/spa/pod/builder.h
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@ -574,7 +574,8 @@ spa_pod_builder_addv(struct spa_pod_builder *builder,
return spa_pod_builder_deref(builder, builder->frame[builder->state.depth].ref);
}
static inline void *spa_pod_builder_add(struct spa_pod_builder *builder, const char *format, ...)
static inline __attribute__((__sentinel__)) void *
spa_pod_builder_add(struct spa_pod_builder *builder, const char *format, ...)
{
void *res;
va_list args;