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@@ -2232,8 +2232,7 @@ static void bcm4377_disable_aspm(struct bcm4377_data *bcm4377)
* or if the BIOS hasn't handed over control to us. We must *always*
* disable ASPM for this device due to hardware errata though.
*/
- pcie_capability_clear_word(bcm4377->pdev, PCI_EXP_LNKCTL,
- PCI_EXP_LNKCTL_ASPMC);
+ pcie_lnkctl_clear_and_set(bcm4377->pdev, PCI_EXP_LNKCTL_ASPMC, 0);
}
static void bcm4377_pci_free_irq_vectors(void *data)
Don't assume that only the driver would be accessing LNKCTL. ASPM policy changes can trigger write to LNKCTL outside of driver's control. Use pcie_lnkctl_clear_and_set() which does proper locking to avoid losing concurrent updates to the register value. Suggested-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/bluetooth/hci_bcm4377.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)