[PATCH v3 1/3] cyclic: stop strdup'ing name in cyclic_register()

Rasmus Villemoes rasmus.villemoes at prevas.dk
Sun May 19 21:55:30 CEST 2024


We are not checking the return value of strdup(), nor
freeing the string in cyclic_unregister().

However, all current users either pass a string literal or the
dev->name of the client device. So in all cases the name string will
live at least as long as the cyclic_info is registered, so just make
that a requirement.

Reviewed-by: Stefan Roese <sr at denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes at prevas.dk>
---
 common/cyclic.c  | 2 +-
 include/cyclic.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/common/cyclic.c b/common/cyclic.c
index a49bfc88f5c..c62e7fa7d19 100644
--- a/common/cyclic.c
+++ b/common/cyclic.c
@@ -40,7 +40,7 @@ struct cyclic_info *cyclic_register(cyclic_func_t func, uint64_t delay_us,
 	/* Store values in struct */
 	cyclic->func = func;
 	cyclic->ctx = ctx;
-	cyclic->name = strdup(name);
+	cyclic->name = name;
 	cyclic->delay_us = delay_us;
 	cyclic->start_time_us = timer_get_us();
 	hlist_add_head(&cyclic->list, cyclic_get_list());
diff --git a/include/cyclic.h b/include/cyclic.h
index 44ad3cb6b80..38946216fb8 100644
--- a/include/cyclic.h
+++ b/include/cyclic.h
@@ -31,7 +31,7 @@
 struct cyclic_info {
 	void (*func)(void *ctx);
 	void *ctx;
-	char *name;
+	const char *name;
 	uint64_t delay_us;
 	uint64_t start_time_us;
 	uint64_t cpu_time_us;
-- 
2.40.1.1.g1c60b9335d



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