leds/leds-pca955x.c: small and, probably, hatmless race window

[Guennadi Liakhovetski]

Hi,

leds/leds-pca955x.c does on two occasions:

	kfree(pca955x);
	i2c_set_clientdata(client, NULL);

which means, between these two calls dev->driver_data points to a freed 
location. One of these two occasions is in probe on the error path, 
another in release, thus, both are, probably, harmless, still would be 
better to fix?

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office@xxxxxxx
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