blkg_to_cfqg() and blkcg_to_cfqgd() on a valid blkg with the policy enabled are guaranteed to return non-NULL and the counterpart in blk-throttle doesn't have these checks either. Remove the spurious NULL checks.
Signed-off-by: Tejun Heo <[email protected]> --- block/cfq-iosched.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 395476a..bcf4026 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1752,12 +1752,10 @@ static ssize_t __cfqg_set_weight_device(struct kernfs_open_file *of, if (ret) return ret; - ret = -EINVAL; cfqg = blkg_to_cfqg(ctx.blkg); cfqgd = blkcg_to_cfqgd(blkcg); - if (!cfqg || !cfqgd) - goto err; + ret = -EINVAL; if (!ctx.v || (ctx.v >= CFQ_WEIGHT_MIN && ctx.v <= CFQ_WEIGHT_MAX)) { if (!is_leaf_weight) { cfqg->dev_weight = ctx.v; @@ -1769,7 +1767,6 @@ static ssize_t __cfqg_set_weight_device(struct kernfs_open_file *of, ret = 0; } -err: blkg_conf_finish(&ctx); return ret ?: nbytes; } -- 2.4.3 -- 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/
