diff options
| author | Frank Li <Frank.Li@nxp.com> | 2025-04-14 14:30:55 -0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-05-07 17:49:00 +0200 |
| commit | 9a958e1fd40d6fae8c66385687a00ebd9575a7d2 (patch) | |
| tree | 53c29230582750f9713aa260430c58be6db875ec /drivers/base | |
| parent | 0af2f6be1b4281385b618cb86ad946eded089ac8 (diff) | |
platform-msi: Add msi_remove_device_irq_domain() in platform_device_msi_free_irqs_all()
platform_device_msi_init_and_alloc_irqs() performs two tasks: allocating
the MSI domain for a platform device, and allocate a number of MSIs in that
domain.
platform_device_msi_free_irqs_all() only frees the MSIs, and leaves the MSI
domain alive.
Given that platform_device_msi_init_and_alloc_irqs() is the sole tool a
platform device has to allocate platform MSIs, it makes sense for
platform_device_msi_free_irqs_all() to teardown the MSI domain at the same
time as the MSIs.
This avoids warnings and unexpected behaviours when a driver repeatedly
allocates and frees MSIs.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/all/20250414-ep-msi-v18-1-f69b49917464@nxp.com
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/platform-msi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c index 0e60dd650b5e..70db08f3ac6f 100644 --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -95,5 +95,6 @@ EXPORT_SYMBOL_GPL(platform_device_msi_init_and_alloc_irqs); void platform_device_msi_free_irqs_all(struct device *dev) { msi_domain_free_irqs_all(dev, MSI_DEFAULT_DOMAIN); + msi_remove_device_irq_domain(dev, MSI_DEFAULT_DOMAIN); } EXPORT_SYMBOL_GPL(platform_device_msi_free_irqs_all); |