The driver may sleep under a spinlock. The function call paths are: b44_set_link_ksettings (acquire the spinlock) phy_ethtool_ksettings_set phy_start_aneg phy_start_aneg_priv mutex_lock --> may sleep
b44_ioctl (acquire the spinlock) phy_mii_ioctl mdiobus_read mutex_lock --> may sleep I do not find a good way to fix them, so I only report.These possible bugs are found by my static analysis tool (DSAC) and checked by my code review.
Thanks, Jia-Ju Bai