5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit c11622324c023415fb69196c5fc3782d2b8cced0 ]
Several resources were not freed in the error path and the remove function. Add the forgotten items.
Fixes: 34cbcd72588f ("pwm: atmel-tcb: Add sama5d2 support") Fixes: 061f8572a31c ("pwm: atmel-tcb: Switch to new binding") Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Reviewed-by: Claudiu Beznea claudiu.beznea@tuxon.dev Signed-off-by: Thierry Reding thierry.reding@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pwm/pwm-atmel-tcb.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c index 4e07d4694bb60..bb415be73bbe4 100644 --- a/drivers/pwm/pwm-atmel-tcb.c +++ b/drivers/pwm/pwm-atmel-tcb.c @@ -450,16 +450,20 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev) tcbpwm->clk = of_clk_get_by_name(np->parent, clk_name); if (IS_ERR(tcbpwm->clk)) tcbpwm->clk = of_clk_get_by_name(np->parent, "t0_clk"); - if (IS_ERR(tcbpwm->clk)) - return PTR_ERR(tcbpwm->clk); + if (IS_ERR(tcbpwm->clk)) { + err = PTR_ERR(tcbpwm->clk); + goto err_slow_clk; + }
match = of_match_node(atmel_tcb_of_match, np->parent); config = match->data;
if (config->has_gclk) { tcbpwm->gclk = of_clk_get_by_name(np->parent, "gclk"); - if (IS_ERR(tcbpwm->gclk)) - return PTR_ERR(tcbpwm->gclk); + if (IS_ERR(tcbpwm->gclk)) { + err = PTR_ERR(tcbpwm->gclk); + goto err_clk; + } }
tcbpwm->chip.dev = &pdev->dev; @@ -470,7 +474,7 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev)
err = clk_prepare_enable(tcbpwm->slow_clk); if (err) - goto err_slow_clk; + goto err_gclk;
spin_lock_init(&tcbpwm->lock);
@@ -485,6 +489,12 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev) err_disable_clk: clk_disable_unprepare(tcbpwm->slow_clk);
+err_gclk: + clk_put(tcbpwm->gclk); + +err_clk: + clk_put(tcbpwm->clk); + err_slow_clk: clk_put(tcbpwm->slow_clk);
@@ -498,8 +508,9 @@ static void atmel_tcb_pwm_remove(struct platform_device *pdev) pwmchip_remove(&tcbpwm->chip);
clk_disable_unprepare(tcbpwm->slow_clk); - clk_put(tcbpwm->slow_clk); + clk_put(tcbpwm->gclk); clk_put(tcbpwm->clk); + clk_put(tcbpwm->slow_clk); }
static const struct of_device_id atmel_tcb_pwm_dt_ids[] = {