drivers/net/can/flexcan.c: add missing clk_put

The failed_get label is used after the call to clk_get has succeeded, so it
should be moved up above the call to clk_put.

The failed_req labels doesn't do anything different than failed_get, so
delete it.

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

// <smpl>
@r exists@
expression e1,e2;
statement S;
@@

e1 = clk_get@p1(...);
... when != e1 = e2
    when != clk_put(e1)
    when any
if (...) { ... when != clk_put(e1)
               when != if (...) { ... clk_put(e1) ... }
* return@p3 ...;
 } else S
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index d499056..1767811 100644 (file)
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -923,7 +923,7 @@ static int __devinit flexcan_probe(struct platform_device *pdev)
        mem_size = resource_size(mem);
        if (!request_mem_region(mem->start, mem_size, pdev->name)) {
                err = -EBUSY;
-               goto failed_req;
+               goto failed_get;
        }
 
        base = ioremap(mem->start, mem_size);
@@ -977,9 +977,8 @@ static int __devinit flexcan_probe(struct platform_device *pdev)
        iounmap(base);
  failed_map:
        release_mem_region(mem->start, mem_size);
- failed_req:
-       clk_put(clk);
  failed_get:
+       clk_put(clk);
  failed_clock:
        return err;
 }