On Sat, 2010-01-23 at 05:06 +0800, Andrew Patterson wrote: > pci: fix nested spinlock hang in aer_inject > > The aer_inject module hangs in aer_inject() when checking the device's > error masks. The hang is due to a recursive use of the aer_inject lock. > The aer_inject() routine grabs the lock while processing the error and then > calls pci_read_config_dword to read the masks. The pci_read_config_dword > routine is earlier overridden by pci_read_aer, which among other things, > grabs the aer_inject lock. > > Fixed by moving the pci_read_config_dword calls to read the masks to before > the lock is taken. > > Signed-off-by: Andrew Patterson <andrew.patterson@xxxxxx> Acked-by: Huang Ying <ying.huang@xxxxxxxxx> Best Regards, Huang Ying -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
