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Message-Id: <20130318042145.344260218@decadent.org.uk> Date: Mon, 18 Mar 2013 04:21:55 +0000 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: akpm@...ux-foundation.org, NeilBrown <neilb@...e.de> Subject: [ 11/82] md: raid0: fix error return from create_stripe_zones. 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: NeilBrown <neilb@...e.de> commit 58ebb34c49fcfcaa029e4b1c1453d92583900f9a upstream. Create_stripe_zones returns an error slightly differently to raid0_run and to raid0_takeover_*. The error returned used by the second was wrong and an error would result in mddev->private being set to NULL and sooner or later a crash. So never return NULL, return ERR_PTR(err), not NULL from create_stripe_zones. This bug has been present since 2.6.35 so the fix is suitable for any kernel since then. Signed-off-by: NeilBrown <neilb@...e.de> Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- drivers/md/raid0.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -286,7 +286,7 @@ abort: kfree(conf->strip_zone); kfree(conf->devlist); kfree(conf); - *private_conf = NULL; + *private_conf = ERR_PTR(err); return err; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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