block: fix returnvar.cocci warnings

JuliaLawall · axboe · commit f6454b049d81 · 2015-05-26T14:02:45.000-06:00
Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

Signed-off-by: Fengguang Wu &lt;fengguang.wu@intel.com&gt;
Signed-off-by: Julia Lawall &lt;julia.lawall@lip6.fr&gt;
Signed-off-by: Jens Axboe &lt;axboe@fb.com&gt;
diff --git a/fs/buffer.c b/fs/buffer.c
@@ -2996,7 +2996,6 @@ void guard_bio_eod(int rw, struct bio *bio)
 int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
 {
 	struct bio *bio;
-	int ret = 0;
 
 	BUG_ON(!buffer_locked(bh));
 	BUG_ON(!buffer_mapped(bh));
@@ -3038,7 +3037,7 @@ int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
 		rw |= REQ_PRIO;
 
 	submit_bio(rw, bio);
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(_submit_bh);
 

Original file line number	Diff line number	Diff line change
`@@ -2996,7 +2996,6 @@ void guard_bio_eod(int rw, struct bio *bio)`
`2996`	`2996`	`int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)`
`2997`	`2997`	`{`
`2998`	`2998`	`struct bio *bio;`
`2999`		`- int ret = 0;`
`3000`	`2999`
`3001`	`3000`	`BUG_ON(!buffer_locked(bh));`
`3002`	`3001`	`BUG_ON(!buffer_mapped(bh));`
`@@ -3038,7 +3037,7 @@ int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)`
`3038`	`3037`	`rw \|= REQ_PRIO;`
`3039`	`3038`
`3040`	`3039`	`submit_bio(rw, bio);`
`3041`		`- return ret;`
	`3040`	`+ return 0;`
`3042`	`3041`	`}`
`3043`	`3042`	`EXPORT_SYMBOL_GPL(_submit_bh);`
`3044`	`3043`