Currently, the port may be destroyed twice or destroyed without being initialized. Fix this by sticking the destroy call in the right place as suggested by Tilman.
Signed-off-by: Jiri Slaby <[email protected]> Reported-by: Tilman Schmidt <[email protected]> Cc: Hansjoerg Lipp <[email protected]> Cc: [email protected] --- drivers/isdn/gigaset/common.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index bc9d89a..6849a11 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -507,6 +507,7 @@ void gigaset_freecs(struct cardstate *cs) gig_dbg(DEBUG_INIT, "clearing at_state"); clear_at_state(&cs->at_state); dealloc_temp_at_states(cs); + tty_port_destroy(&cs->port); /* fall through */ case 0: /* error in basic setup */ @@ -518,7 +519,6 @@ f_bcs: gig_dbg(DEBUG_INIT, "freeing bcs[]"); kfree(cs->bcs); f_cs: gig_dbg(DEBUG_INIT, "freeing cs"); mutex_unlock(&cs->mutex); - tty_port_destroy(&cs->port); free_cs(cs); } EXPORT_SYMBOL_GPL(gigaset_freecs); @@ -752,14 +752,14 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, gig_dbg(DEBUG_INIT, "setting up iif"); if (gigaset_isdn_regdev(cs, modulename) < 0) { pr_err("error registering ISDN device\n"); - goto error_port; + goto error; } make_valid(cs, VALID_ID); ++cs->cs_init; gig_dbg(DEBUG_INIT, "setting up hw"); if (cs->ops->initcshw(cs) < 0) - goto error_port; + goto error; ++cs->cs_init; @@ -774,7 +774,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, gig_dbg(DEBUG_INIT, "setting up bcs[%d]", i); if (gigaset_initbcs(cs->bcs + i, cs, i) < 0) { pr_err("could not allocate channel %d data\n", i); - goto error_port; + goto error; } } @@ -787,8 +787,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, gig_dbg(DEBUG_INIT, "cs initialized"); return cs; -error_port: - tty_port_destroy(&cs->port); + error: gig_dbg(DEBUG_INIT, "failed"); gigaset_freecs(cs); -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
