CVS commit: src/sys/dev/usb

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Thu Mar  3 05:54:21 UTC 2022

Modified Files:
        src/sys/dev/usb: if_aue.c if_axe.c if_axen.c if_mos.c if_mue.c
            if_smsc.c if_udav.c if_ure.c if_url.c

Log Message:
usbnet drivers: Avoid undefined behaviour if read reg fails.

Some callers don't check the error code, e.g. ~all the mii phy
drivers using PHY_READ.  Just return zero if the device is gone or
the xfer fails for any other reason.


To generate a diff of this commit:
cvs rdiff -u -r1.184 -r1.185 src/sys/dev/usb/if_aue.c
cvs rdiff -u -r1.143 -r1.144 src/sys/dev/usb/if_axe.c
cvs rdiff -u -r1.87 -r1.88 src/sys/dev/usb/if_axen.c
cvs rdiff -u -r1.16 -r1.17 src/sys/dev/usb/if_mos.c
cvs rdiff -u -r1.75 -r1.76 src/sys/dev/usb/if_mue.c
cvs rdiff -u -r1.85 -r1.86 src/sys/dev/usb/if_smsc.c
cvs rdiff -u -r1.90 -r1.91 src/sys/dev/usb/if_udav.c
cvs rdiff -u -r1.50 -r1.51 src/sys/dev/usb/if_ure.c
cvs rdiff -u -r1.89 -r1.90 src/sys/dev/usb/if_url.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.