[5/5] clk: Make clk_rate_exclusive_get() return void

Commit Message

Uwe Kleine-König Dec. 12, 2023, 5:26 p.m. UTC

The function currently returns 0 unconditionally. This isn't very useful
and makes users create dead code error paths. So let this function
return no value. All users were adapted before to ignore the returned
value.

Also fix a few typos in the kernel doc comment for
clk_rate_exclusive_get().

Signed-off-by: Uwe Kleine-König <[e-mail]>
---
 drivers/clk/clk.c   | 6 ++----
 include/linux/clk.h | 8 +++-----
 2 files changed, 5 insertions(+), 9 deletions(-)

Patch

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 2253c154a824..af2011c2a93b 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -925,17 +925,15 @@  static void clk_core_rate_restore_protect(struct clk_core *core, int count)
  * clk_rate_exclusive_put(). Calls to this function may sleep.
  * Returns 0 on success, -EERROR otherwise
  */
-int clk_rate_exclusive_get(struct clk *clk)
+void clk_rate_exclusive_get(struct clk *clk)
 {
 	if (!clk)
-		return 0;
+		return;
 
 	clk_prepare_lock();
 	clk_core_rate_protect(clk->core);
 	clk->exclusive_count++;
 	clk_prepare_unlock();
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(clk_rate_exclusive_get);
 
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 06f1b292f8a0..f88c407925f8 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -190,16 +190,14 @@  bool clk_is_match(const struct clk *p, const struct clk *q);
  *
  * This function allows drivers to get exclusive control over the rate of a
  * provider. It prevents any other consumer to execute, even indirectly,
- * opereation which could alter the rate of the provider or cause glitches
+ * operation which could alter the rate of the provider or cause glitches
  *
- * If exlusivity is claimed more than once on clock, even by the same driver,
+ * If exclusivity is claimed more than once on clock, even by the same driver,
  * the rate effectively gets locked as exclusivity can't be preempted.
  *
  * Must not be called from within atomic context.
- *
- * Returns success (0) or negative errno.
  */
-int clk_rate_exclusive_get(struct clk *clk);
+void clk_rate_exclusive_get(struct clk *clk);
 
 /**
  * clk_rate_exclusive_put - release exclusivity over the rate control of a