6.5-stable review patch. If anyone has any objections, please let me know.
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From: Biju Das biju.das.jz@bp.renesas.com
[ Upstream commit e21ac64e669e960688e79bf5babeed63132dac8a ]
The clk_register_clkdev() allocates memory by calling vclkdev_alloc() and this memory is not freed in the error path. Similarly, resources allocated by clk_register_fixed_rate() are not freed in the error path.
Fix these issues by using devm_clk_hw_register_fixed_rate() and devm_clk_hw_register_clkdev().
After this, the static variable clk is not needed. Replace it with local variable hw in probe() and drop calling clk_unregister_fixed_rate() from raa215300_rtc_unregister_device().
Fixes: 7bce16630837 ("regulator: Add Renesas PMIC RAA215300 driver") Cc: stable@kernel.org Signed-off-by: Biju Das biju.das.jz@bp.renesas.com Link: https://lore.kernel.org/r/20230816135550.146657-2-biju.das.jz@bp.renesas.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/regulator/raa215300.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/regulator/raa215300.c b/drivers/regulator/raa215300.c index 8e1a4c86b9789..253645696d0bb 100644 --- a/drivers/regulator/raa215300.c +++ b/drivers/regulator/raa215300.c @@ -38,8 +38,6 @@ #define RAA215300_REG_BLOCK_EN_RTC_EN BIT(6) #define RAA215300_RTC_DEFAULT_ADDR 0x6f
-static struct clk *clk; - static const struct regmap_config raa215300_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -49,10 +47,6 @@ static const struct regmap_config raa215300_regmap_config = { static void raa215300_rtc_unregister_device(void *data) { i2c_unregister_device(data); - if (!clk) { - clk_unregister_fixed_rate(clk); - clk = NULL; - } }
static int raa215300_clk_present(struct i2c_client *client, const char *name) @@ -130,10 +124,16 @@ static int raa215300_i2c_probe(struct i2c_client *client) u32 addr = RAA215300_RTC_DEFAULT_ADDR; struct i2c_board_info info = {}; struct i2c_client *rtc_client; + struct clk_hw *hw; ssize_t size;
- clk = clk_register_fixed_rate(NULL, clk_name, NULL, 0, 32000); - clk_register_clkdev(clk, clk_name, NULL); + hw = devm_clk_hw_register_fixed_rate(dev, clk_name, NULL, 0, 32000); + if (IS_ERR(hw)) + return PTR_ERR(hw); + + ret = devm_clk_hw_register_clkdev(dev, hw, clk_name, NULL); + if (ret) + return dev_err_probe(dev, ret, "Failed to initialize clkdev\n");
if (np) { int i;