Issue 6824041: USB: cdc-acm: fix deadlock in acm_tty_open

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Issue 6824041: USB: cdc-acm: fix deadlock in acm_tty_open (Closed)

Created:
9 years, 8 months ago by Vincent Palatin

Modified:
9 years, 7 months ago

Reviewers:
puneetster, Benson Leung, Sonny

CC:
chromium-os-reviews_chromium.org, Jason Glasgow

Visibility:
Public.

USB: cdc-acm: fix deadlock in acm_tty_open The mutex must be dropped before calling usb_autopm_interface_put, else a concurrent call to acm_suspend will trigger a deadlock. BUG=chrome-os-partner:3143 TEST=run power_Resume test in tight loops on Alex. Signed-off-by: Vincent Palatin <vpalatin@chromium.org>; Committed: http://chrome-svn/viewvc/chromeos?view=rev&revision=e23a791

Created: 9 years, 8 months ago

Download [raw] [tar.bz2]

		Unified diffs	Side-by-side diffs	Delta from patch set	Stats (+1 line, -2 lines)			Patch
	M	drivers/usb/class/cdc-acm.c	View		2 chunks	+1 line, -2 lines	0 comments	Download

Total messages: 2 (0 generated)

Vincent Palatin

[5/5] try to fix the issues detected in the CDC ACM driver when running power_Resume ...

9 years, 8 months ago (2011-04-11 17:02:49 UTC) #1

LGTM