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 <tj@xxxxxxxxxx>
---
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
--
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