[PATCH] clk: renesas: r9a09g077: Add missing slab.h and cleanup.h includes

[Sasha Levin]

r9a09g077_post_init() uses kzalloc_obj() and __free(kfree), but the file
includes neither <linux/slab.h> nor <linux/cleanup.h>. It only builds
where those happen to be pulled in transitively; on arm allmodconfig
they are not, and the build fails:

  drivers/clk/renesas/r9a09g077-cpg.c:966:35: error: use of undeclared
  identifier '__free_kfree'; did you mean '__free_pages'?
  drivers/clk/renesas/r9a09g077-cpg.c:966:35: error: 'cleanup' function
  '__free_pages' must take 1 parameter
  drivers/clk/renesas/r9a09g077-cpg.c:966:51: error: call to undeclared
  function 'kzalloc_obj'; ISO C99 and later do not support implicit
  function declarations [-Wimplicit-function-declaration]
  drivers/clk/renesas/r9a09g077-cpg.c:966:24: error: incompatible integer
  to pointer conversion initializing 'struct regmap_config *' with an
  expression of type 'int' [-Wint-conversion]

gcc reports the same thing as "cleanup argument not a function" plus an
implicit declaration of kzalloc_obj().

Include both headers explicitly rather than relying on an incidental
include chain.

Fixes: 810b8b6c4e02 ("clk: renesas: r9a09g077: Register SYSC regmap")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202609101334.xgbNoC4e-lkp@xxxxxxxxx/
Assisted-by: LLM
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/clk/renesas/r9a09g077-cpg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g077-cpg.c b/drivers/clk/renesas/r9a09g077-cpg.c
index 0495e3206973c..5a0e7df1eb06c 100644
--- a/drivers/clk/renesas/r9a09g077-cpg.c
+++ b/drivers/clk/renesas/r9a09g077-cpg.c
@@ -8,6 +8,7 @@
 
 #include <linux/bitfield.h>
 #include <linux/bits.h>
+#include <linux/cleanup.h>
 #include <linux/clk-provider.h>
 #include <linux/clk/renesas.h>
 #include <linux/device.h>
@@ -20,6 +21,7 @@
 #include <linux/module.h>
 #include <linux/of_address.h>
 #include <linux/regmap.h>
+#include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/units.h>
 
-- 
2.53.0