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pwm: atmel-tcb: Fix resource freeing in error path and remove 

[ Upstream commit c11622324c ]

Several resources were not freed in the error path and the remove
function. Add the forgotten items.

Fixes: 34cbcd7258 ("pwm: atmel-tcb: Add sama5d2 support")
Fixes: 061f8572a3 ("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>
This commit is contained in:
Uwe Kleine-König 2023-07-19 21:20:10 +02:00 committed by Greg Kroah-Hartman
parent c42256a283
commit 9de7eb95bb
1 changed files with 17 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/pwm/pwm-atmel-tcb.c
View File

@ -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[] = {