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authorMarc Zyngier <maz@kernel.org>2021-07-25 20:07:54 +0200
committerLee Jones <lee.jones@linaro.org>2021-08-05 13:41:06 +0200
commit9ff80e2de36d0554e3a6da18a171719fe8663c17 (patch)
tree89053da4d70cc9ce4ba58e07ecb659d0d5ba50f9 /drivers/mfd/wm8994-irq.c
parentdt-bindings: mfd: pm8008: Add gpio-ranges and spmi-gpio compatible (diff)
downloadlinux-9ff80e2de36d0554e3a6da18a171719fe8663c17.tar.xz
linux-9ff80e2de36d0554e3a6da18a171719fe8663c17.zip
mfd: Don't use irq_create_mapping() to resolve a mapping
Although irq_create_mapping() is able to deal with duplicate mappings, it really isn't supposed to be a substitute for irq_find_mapping(), and can result in allocations that take place in atomic context if the mapping didn't exist. Fix the handful of MFD drivers that use irq_create_mapping() in interrupt context by using irq_find_mapping() instead. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/wm8994-irq.c')
-rw-r--r--drivers/mfd/wm8994-irq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/wm8994-irq.c b/drivers/mfd/wm8994-irq.c
index 6c3a619e2628..651a028bc519 100644
--- a/drivers/mfd/wm8994-irq.c
+++ b/drivers/mfd/wm8994-irq.c
@@ -154,7 +154,7 @@ static irqreturn_t wm8994_edge_irq(int irq, void *data)
struct wm8994 *wm8994 = data;
while (gpio_get_value_cansleep(wm8994->pdata.irq_gpio))
- handle_nested_irq(irq_create_mapping(wm8994->edge_irq, 0));
+ handle_nested_irq(irq_find_mapping(wm8994->edge_irq, 0));
return IRQ_HANDLED;
}