random: initialize the last_time field in struct timer_rand_state (644008df) · Commits · 戴 / test

drivers/char/random.c

+6 −2

Original line number	Original line	Diff line number	Diff line
	@@ -724,6 +724,8 @@ struct timer_rand_state {
	unsigned dont_count_entropy:1;		unsigned dont_count_entropy:1;
	};		};

			#define INIT_TIMER_RAND_STATE { INITIAL_JIFFIES, };

	/*		/*
	* Add device- or boot-specific data to the input and nonblocking		* Add device- or boot-specific data to the input and nonblocking
	* pools to help initialize them to unique values.		* pools to help initialize them to unique values.
	@@ -750,7 +752,7 @@ void add_device_randomness(const void *buf, unsigned int size)
	}		}
	EXPORT_SYMBOL(add_device_randomness);		EXPORT_SYMBOL(add_device_randomness);

	static struct timer_rand_state input_timer_state;		static struct timer_rand_state input_timer_state = INIT_TIMER_RAND_STATE;

	/*		/*
	* This function adds entropy to the entropy "pool" by using timing		* This function adds entropy to the entropy "pool" by using timing
	@@ -1267,9 +1269,11 @@ void rand_initialize_disk(struct gendisk *disk)
	* source.		* source.
	*/		*/
	state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);		state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
	if (state)		if (state) {
			state->last_time = INITIAL_JIFFIES;
	disk->random = state;		disk->random = state;
	}		}
			}
	#endif		#endif

	static ssize_t		static ssize_t