lib/genalloc.c: correct dev_get_gen_pool documentation

The documentation mentions a "name" parameter, which does not exist. This
commit removes such mention from the function documentation.

Signed-off-by: Emilio López <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

lib/genalloc.c

···
 /**
  * dev_get_gen_pool - Obtain the gen_pool (if any) for a device
  * @dev: device to retrieve the gen_pool from
- * @name: Optional name for the gen_pool, usually NULL
  *
  * Returns the gen_pool for the device if one is present, or NULL.
  */