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umass: fix a cam_sim leak in error case

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While debugging a hang I noticed that in case of error in
umass_cam_attach_sim() we miss a cam_sim_free() call.
Added that to not leak resources.

Reviewed by:	hselasky
MFC after:	3 days
Differential Revision:	D26287
This commit is contained in:
Bjoern A. Zeeb 2020-09-04 18:26:35 +00:00
parent 7a7ca53f69
commit ed75ef34d4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=365334
1 changed files with 1 additions and 0 deletions
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sys/dev/usb/storage/umass.c
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@ -2094,6 +2094,7 @@ umass_cam_attach_sim(struct umass_softc *sc)
if (xpt_bus_register(sc->sc_sim, sc->sc_dev,
sc->sc_unit) != CAM_SUCCESS) {
cam_sim_free(sc->sc_sim, /* free_devq */ TRUE);
mtx_unlock(&sc->sc_mtx);
return (ENOMEM);
}