fix double free in advapi32/crypt.c

[Michael Jung]

Hi,

this a resubmit of a patch, which I've sent a couple of days ago, but which 
was not applied. It fixes a double call to CRYPT_Free for the temp variable, 
in the case that the CSP's CPAcquireContext function does not complete 
successfully. I've tried to imitate Alexandre's last patch to 
advapi32/crypt.c, which fixes a similar problem.

Changelog:
	Fixes a potential double call to CRYPT_Free on variable "temp".  

-- 
Michael Jung, MSc                               Be liberal in what you accept,
Integrated Circuits and Systems Lab         and conservative in what you send.
University of Technology, Darmstadt       -- Jonathan Postel, Internet Pioneer
phone: +49(6151)16-6692 / email: mjung at iss.tu-darmstadt.de


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