Re: [PATCH] i2c: designware-pci: Fix BUG_ON during device removal

On Thu, Feb 13, 2020 at 05:15:03PM +0200, Jarkko Nikula wrote:

Function i2c_dw_pci_remove() -> pci_free_irq_vectors() -> pci_disable_msi() -> free_msi_irqs() will throw a BUG_ON() for MSI enabled device since the driver has not released the requested IRQ before calling the pci_free_irq_vectors().

Here driver requests an IRQ using devm_request_irq() but automatic release happens only after remove callback. Fix this by explicitly freeing the IRQ before calling pci_free_irq_vectors().

Fixes: 21aa3983d619 ("i2c: designware-pci: Switch over to MSI interrupts") Cc: stable@vger.kernel.org # v5.4+ Signed-off-by: Jarkko Nikula jarkko.nikula@linux.intel.com

Applied to for-current, thanks!