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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2016-11-22 19:10:28 +0300
committerLee Jones <lee.jones@linaro.org>2017-02-13 12:29:40 +0300
commit3dfaff274d558a4107393831afa0cf0989bc4ff1 (patch)
tree7707f47868e5426749d0c9d0e3b11259d3adf644
parent1a86dcb3f1405a0152b9df7cebb75b839386c997 (diff)
downloadlinux-3dfaff274d558a4107393831afa0cf0989bc4ff1.tar.xz
mfd: arizona: Correctly clean up after IRQs
Currently we leak a lot of things when tearing down the IRQs this patch fixes this cleaning up both the IRQ mappings and the IRQ domain itself. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--drivers/mfd/arizona-irq.c59
1 files changed, 41 insertions, 18 deletions
diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 88729cf6cb32..09cf3699e354 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -210,6 +210,7 @@ int arizona_irq_init(struct arizona *arizona)
int ret;
const struct regmap_irq_chip *aod, *irq;
struct irq_data *irq_data;
+ unsigned int virq;
arizona->ctrlif_error = true;
@@ -321,26 +322,34 @@ int arizona_irq_init(struct arizona *arizona)
}
if (aod) {
- ret = regmap_add_irq_chip(arizona->regmap,
- irq_create_mapping(arizona->virq,
- ARIZONA_AOD_IRQ_INDEX),
- IRQF_ONESHOT, 0, aod,
- &arizona->aod_irq_chip);
+ virq = irq_create_mapping(arizona->virq, ARIZONA_AOD_IRQ_INDEX);
+ if (!virq) {
+ dev_err(arizona->dev, "Failed to map AOD IRQs\n");
+ ret = -EINVAL;
+ goto err_domain;
+ }
+
+ ret = regmap_add_irq_chip(arizona->regmap, virq, IRQF_ONESHOT,
+ 0, aod, &arizona->aod_irq_chip);
if (ret != 0) {
dev_err(arizona->dev,
"Failed to add AOD IRQs: %d\n", ret);
- goto err;
+ goto err_map_aod;
}
}
- ret = regmap_add_irq_chip(arizona->regmap,
- irq_create_mapping(arizona->virq,
- ARIZONA_MAIN_IRQ_INDEX),
- IRQF_ONESHOT, 0, irq,
- &arizona->irq_chip);
+ virq = irq_create_mapping(arizona->virq, ARIZONA_MAIN_IRQ_INDEX);
+ if (!virq) {
+ dev_err(arizona->dev, "Failed to map main IRQs\n");
+ ret = -EINVAL;
+ goto err_aod;
+ }
+
+ ret = regmap_add_irq_chip(arizona->regmap, virq, IRQF_ONESHOT,
+ 0, irq, &arizona->irq_chip);
if (ret != 0) {
dev_err(arizona->dev, "Failed to add main IRQs: %d\n", ret);
- goto err_aod;
+ goto err_map_main_irq;
}
/* Used to emulate edge trigger and to work around broken pinmux */
@@ -404,26 +413,40 @@ err_main_irq:
regmap_del_irq_chip(irq_find_mapping(arizona->virq,
ARIZONA_MAIN_IRQ_INDEX),
arizona->irq_chip);
+err_map_main_irq:
+ irq_dispose_mapping(irq_find_mapping(arizona->virq,
+ ARIZONA_MAIN_IRQ_INDEX));
err_aod:
regmap_del_irq_chip(irq_find_mapping(arizona->virq,
ARIZONA_AOD_IRQ_INDEX),
arizona->aod_irq_chip);
+err_map_aod:
+ irq_dispose_mapping(irq_find_mapping(arizona->virq,
+ ARIZONA_AOD_IRQ_INDEX));
+err_domain:
+ irq_domain_remove(arizona->virq);
err:
return ret;
}
int arizona_irq_exit(struct arizona *arizona)
{
+ unsigned int virq;
+
if (arizona->ctrlif_error)
arizona_free_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR, arizona);
arizona_free_irq(arizona, ARIZONA_IRQ_BOOT_DONE, arizona);
- regmap_del_irq_chip(irq_find_mapping(arizona->virq,
- ARIZONA_MAIN_IRQ_INDEX),
- arizona->irq_chip);
- regmap_del_irq_chip(irq_find_mapping(arizona->virq,
- ARIZONA_AOD_IRQ_INDEX),
- arizona->aod_irq_chip);
+ virq = irq_find_mapping(arizona->virq, ARIZONA_MAIN_IRQ_INDEX);
+ regmap_del_irq_chip(virq, arizona->irq_chip);
+ irq_dispose_mapping(virq);
+
+ virq = irq_find_mapping(arizona->virq, ARIZONA_AOD_IRQ_INDEX);
+ regmap_del_irq_chip(virq, arizona->aod_irq_chip);
+ irq_dispose_mapping(virq);
+
+ irq_domain_remove(arizona->virq);
+
free_irq(arizona->irq, arizona);
return 0;