drivers/video/atmel_lcdfb.c: fix error return code
authorPeter Senna Tschudin <peter.senna@gmail.com>
Tue, 18 Sep 2012 12:07:55 +0000 (14:07 +0200)
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
Sat, 22 Sep 2012 21:41:52 +0000 (21:41 +0000)
Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.

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

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
drivers/video/atmel_lcdfb.c

index 15055395cd95a1eff62591c81111501dda1e6560..94cac9f9919ffa1ce9c278812b4708b0b80bfcdf 100644 (file)
@@ -931,8 +931,10 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
                }
 
                info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
-               if (!info->screen_base)
+               if (!info->screen_base) {
+                       ret = -ENOMEM;
                        goto release_intmem;
+               }
 
                /*
                 * Don't clear the framebuffer -- someone may have set
@@ -960,6 +962,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
        sinfo->mmio = ioremap(info->fix.mmio_start, info->fix.mmio_len);
        if (!sinfo->mmio) {
                dev_err(dev, "cannot map LCDC registers\n");
+               ret = -ENOMEM;
                goto release_mem;
        }