From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Mon, 2 Feb 2015 15:10:57 +0100

The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

* This issue was detected by using the Coccinelle software.

* Let us also move an assignment for the variable "pages" to the place
  directly before it is really needed for a loop.

* Let us also move another kfree() call into a block which should belong
  to a previous check for the variable "bp".

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 drivers/md/bitmap.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index da3604e..47d72df 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1586,15 +1586,15 @@ static void bitmap_free(struct bitmap *bitmap)
        bitmap_file_unmap(&bitmap->storage);
 
        bp = bitmap->counts.bp;
-       pages = bitmap->counts.pages;
 
        /* free all allocated memory */
-
-       if (bp) /* deallocate the page memory */
+       if (bp) { /* deallocate the page memory */
+               pages = bitmap->counts.pages;
                for (k = 0; k < pages; k++)
-                       if (bp[k].map && !bp[k].hijacked)
+                       if (!bp[k].hijacked)
                                kfree(bp[k].map);
-       kfree(bp);
+               kfree(bp);
+       }
        kfree(bitmap);
 }
 
-- 
2.2.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to