KERNEL_VERSION: 2.6.31
DESCRIBE:
Driver scsi_lib.c might sleep in atomic context, because it calls
scsi_device_put under spin_lock_irqsave.
drivers/scsi/scsi_lib.c:356:
spin_lock_irqsave(shost->host_lock, flags);
scsi_device_put(sdev);
Path to might_sleep macro from scsi_device_put:
1. scsi_device_put calls put_device at ./drivers/scsi/scsi.c:1111
2. put_device calls kobject_put at ./drivers/base/core.c:1038
3. kobject_put calls kref_put at ./lib/kobject.c
4. kref_put may call callback function kobject_release at ./lib/kref.c if
refcount becomes zero, which might_sleep because it calls user event. Details:
4.1 kobject_cleanup calls kobject_uevent at ./lib/kobject.c:555
4.2 kobject_uevent calls kobject_uevent_env at ./lib/kobject_uevent.c:282
4.3 kobject_uevent_env calls call_usermodehelper_exec at
include/linux/kmod.h:83
4.4 call_usermodehelper_exec calls wait_for_completion at ./kernel/kmod.c:481
4.5 wait_for_completion calls wait_for_common at ./kernel/sched.c:5710
4.5 wait_for_common calls might_sleep at ./kernels/sched.c:5692
Found by: Linux Driver Verification
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