AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

sound: mpu401.c: make return of 0 explicit

Browse Source 
Delete unnecessary local variable whose value is always 0 and that hides
the fact that the result is always 0.

A simplified version of the semantic patch that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
local idexpression ret;
expression e;
position p;
@@

-ret = 0;
... when != ret = e
return
- ret
+ 0
  ;
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Julia Lawall 2014-05-19 06:31:10 +02:00 committed by Takashi Iwai
parent d576422eda
commit 47c9807425
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sound/oss/mpu401.c
View File

@ -567,7 +567,6 @@ static int mpu401_out(int dev, unsigned char midi_byte)
static int mpu401_command(int dev, mpu_command_rec * cmd)
{
int i, timeout, ok;
int ret = 0;
unsigned long flags;
struct mpu_config *devc;
@ -644,7 +643,6 @@ static int mpu401_command(int dev, mpu_command_rec * cmd)
}
}
}
ret = 0;
cmd->data[0] = 0;
if (cmd->nr_returns)
@ -666,7 +664,7 @@ static int mpu401_command(int dev, mpu_command_rec * cmd)
}
}
spin_unlock_irqrestore(&devc->lock,flags);
return ret;
return 0;
}
static int mpu_cmd(int dev, int cmd, int data)