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PR/54495 CVS commit: src/sys/dev/usb
The following reply was made to PR kern/54495; it has been noted by GNATS.
From: "matthew green" <mrg%netbsd.org@localhost>
Subject: PR/54495 CVS commit: src/sys/dev/usb
Date: Thu, 29 Aug 2019 09:17:51 +0000
Module Name: src
Committed By: mrg
Date: Thu Aug 29 09:17:51 UTC 2019
fix a lock hang reported by sc.dying in PR#54495.
remove locking in usbnet_tick(). assume that all locking
needs are handled inside usbnet_tick_task(), which runs in
the usbtask thread. ensure that usbnet private is valid
before using it.
also check NULL private pointer in usbnet_isdying().
all the other cases should never happen.
To generate a diff of this commit:
cvs rdiff -u -r1.24 -r1.25 src/sys/dev/usb/usbnet.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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