diff options
| author | Fabien Dessenne <fabien.dessenne@st.com> | 2019-04-24 17:51:05 +0200 |
|---|---|---|
| committer | Jassi Brar <jaswinder.singh@linaro.org> | 2019-05-09 00:41:00 -0500 |
| commit | 68a1c8485cf83734d4da9d81cd3b5d2ae7c0339b (patch) | |
| tree | f2088f309e535a68f5040fc952b8411aaa366659 /drivers/mailbox/stm32-ipcc.c | |
| parent | 0c40e631cd7f1dd762869bc91550ab20381d87bf (diff) | |
mailbox: stm32-ipcc: check invalid irq
On failure of_irq_get() returns a negative value or zero, which is
not handled as an error in the existing implementation.
Instead of using this API, use platform_get_irq() that returns
exclusively a negative value on failure.
Also, do not output an error log in case of defer probe error.
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'drivers/mailbox/stm32-ipcc.c')
| -rw-r--r-- | drivers/mailbox/stm32-ipcc.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/mailbox/stm32-ipcc.c b/drivers/mailbox/stm32-ipcc.c index 210fe504f5ae..f91dfb1327c7 100644 --- a/drivers/mailbox/stm32-ipcc.c +++ b/drivers/mailbox/stm32-ipcc.c @@ -8,9 +8,9 @@ #include <linux/bitfield.h> #include <linux/clk.h> #include <linux/interrupt.h> +#include <linux/io.h> #include <linux/mailbox_controller.h> #include <linux/module.h> -#include <linux/of_irq.h> #include <linux/platform_device.h> #include <linux/pm_wakeirq.h> @@ -240,9 +240,11 @@ static int stm32_ipcc_probe(struct platform_device *pdev) /* irq */ for (i = 0; i < IPCC_IRQ_NUM; i++) { - ipcc->irqs[i] = of_irq_get_byname(dev->of_node, irq_name[i]); + ipcc->irqs[i] = platform_get_irq_byname(pdev, irq_name[i]); if (ipcc->irqs[i] < 0) { - dev_err(dev, "no IRQ specified %s\n", irq_name[i]); + if (ipcc->irqs[i] != -EPROBE_DEFER) + dev_err(dev, "no IRQ specified %s\n", + irq_name[i]); ret = ipcc->irqs[i]; goto err_clk; } @@ -263,9 +265,10 @@ static int stm32_ipcc_probe(struct platform_device *pdev) /* wakeup */ if (of_property_read_bool(np, "wakeup-source")) { - ipcc->wkp = of_irq_get_byname(dev->of_node, "wakeup"); + ipcc->wkp = platform_get_irq_byname(pdev, "wakeup"); if (ipcc->wkp < 0) { - dev_err(dev, "could not get wakeup IRQ\n"); + if (ipcc->wkp != -EPROBE_DEFER) + dev_err(dev, "could not get wakeup IRQ\n"); ret = ipcc->wkp; goto err_clk; } |