Yet another round of redundand NULL checks before HeapFree
(found by Smatch).
Michael Stefaniuc
mstefani at redhat.com
Wed Jun 7 18:24:42 CDT 2006
Please disregard this patch as a false positive crept in.
Michael Stefaniuc wrote:
> hopefully this should be the last round of redundand NULL checks before
> HeapFree removals. I know, famous last words. But this time i have
> extended the redundant_null_check.pl Smatch script to find all non-null
> variables from arbitrary complex if-expressions and check that any of
> them dosn't get HeapFree'd on the truth path.
> diff --git a/dlls/msacm32/driver.c b/dlls/msacm32/driver.c
> index e537bc4..bec3526 100644
> --- a/dlls/msacm32/driver.c
> +++ b/dlls/msacm32/driver.c
> @@ -587,7 +587,7 @@ MMRESULT WINAPI acmDriverOpen(PHACMDRIVE
> return MMSYSERR_NOERROR;
> gotError:
> WARN("failed: ret = %08x\n", ret);
> - if (pad && !pad->hDrvr)
> + if (!pad->hDrvr)
nice NULL pointer dereference.
> HeapFree(MSACM_hHeap, 0, pad);
> return ret;
> }
bye
michael
--
Michael Stefaniuc Tel.: +49-711-96437-199
Sr. Network Engineer Fax.: +49-711-96437-111
Red Hat GmbH Email: mstefani at redhat.com
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