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bus: fsl-mc-msi: Allocate MSI device data on first use

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Allocate the MSI device data on first invocation of the allocation function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20211210221813.867985931@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-12-10 23:19:00 +01:00
parent 077aeadb6c
commit 86ca622628
1 changed files with 8 additions and 6 deletions
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14
drivers/bus/fsl-mc/fsl-mc-msi.c
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@ -253,6 +253,14 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev,
struct irq_domain *msi_domain;
int error;
msi_domain = dev_get_msi_domain(dev);
if (!msi_domain)
return -EINVAL;
error = msi_setup_device_data(dev);
if (error)
return error;
if (!list_empty(dev_to_msi_list(dev)))
return -EINVAL;
@ -260,12 +268,6 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev,
if (error < 0)
return error;
msi_domain = dev_get_msi_domain(dev);
if (!msi_domain) {
error = -EINVAL;
goto cleanup_msi_descs;
}
/*
* NOTE: Calling this function will trigger the invocation of the
* its_fsl_mc_msi_prepare() callback