quoted

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

NACK

When a user asks me for help I would certainly like to get 
'Could not allocate cache tags' as apposed to nothing,

Do you find the default allocation failure report insufficient?

since the return value of ps3vram_cache_init() is not checked.

Are there any more update candidates to consider for better exception handling?

Regards,
Markus