smatch update / 2.5.64 / kbugs.org

[dan carpenter]

/*  
 * Smatch is an open source c error checker based 
 * on the papers about the Stanford Checker. 
 * (http://smatch.sf.net)  The documentation on coding 
 * smatch checks has been updated since my last email to 
 * this list. 
 *
 */

The smatch bugs for kernel 2.5.64 are up.  The 
new url for the smatch bug database is http://kbugs.org.  

One new script from Monday was "UnFree."  This check 
looks for variables that aren't freed on the error paths.
http://kbugs.org/cgi-bin/index.py?page=bug_list&script=UnFree&kernel=2.5.64

The bug database is still under heavy construction (ie it
is really bad).  But I hope to improve it some more this
week.  Also I plan to add some documentation etc.

The possible bug count for 2.5.64 was 1018.  Eventually 
this information will all be available in a stats page but 
for now I'll just post the raw SQL...

mysql> select kernelver, script, count(script) from bugs where kernelver = "2.5.64" group by script, kernelver;
+-----------+-------------------+---------------+
| kernelver | script            | count(script) |
+-----------+-------------------+---------------+
| 2.5.64    | Dereference       |           469 |
| 2.5.64    | GFP_DMA           |             7 |
| 2.5.64    | ReleaseRegion     |            14 |
| 2.5.64    | SpinlockUndefined |            44 |
| 2.5.64    | SpinSleepLazy     |             4 |
| 2.5.64    | UncheckedReturn   |           119 |
| 2.5.64    | UnFree            |           333 |
| 2.5.64    | UnreachedCode     |            28 |
+-----------+-------------------+---------------+
8 rows in set (0.07 sec)

regards,
dan carpenter

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