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| author | Austin Morton <austinpmorton@gmail.com> | 2017-12-27 05:53:41 -0500 |
|---|---|---|
| committer | Austin Morton <austinpmorton@gmail.com> | 2018-10-01 17:57:11 -0400 |
| commit | 40769f9bd350be59b9a9ef944c77d63cfc883f2e (patch) | |
| tree | ce7d701e2b9005eb7d878173050e5d49aa564ae6 /os/common/ext/TivaWare/inc/hw_hibernate.h | |
| parent | ca79ff2e87ed8b483cf7c889ec7225d9703bc2da (diff) | |
| download | ChibiOS-Contrib-40769f9bd350be59b9a9ef944c77d63cfc883f2e.tar.gz ChibiOS-Contrib-40769f9bd350be59b9a9ef944c77d63cfc883f2e.tar.bz2 ChibiOS-Contrib-40769f9bd350be59b9a9ef944c77d63cfc883f2e.zip | |
avoid using list_for_each_entry_safe when closing endpoints to prevent potential infinite loop
list_for_each_entry_safe is only safe when the current entry is being removed.
If other entries in the list could potentially be removed it can result in an infinite loop.
Because usbh_lld_ep_close blocks on each urb during iteration, it may give up its lock on
the system and allow an interrupt to remove a different urb from the list,
resulting in an infinite loop when the thread resumes.
Diffstat (limited to 'os/common/ext/TivaWare/inc/hw_hibernate.h')
0 files changed, 0 insertions, 0 deletions