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Commit 799c98cb authored by He Zhe's avatar He Zhe Committed by Greg Kroah-Hartman
Browse files

printk: Correct wrong casting 

[ Upstream commit 51a72ab7372d85c96104e58036f1b49ba11e5d2b ]

log_first_seq and console_seq are 64-bit unsigned integers.
Correct a wrong casting that might cut off the output.

Link: http://lkml.kernel.org/r/1538239553-81805-2-git-send-email-zhe.he@windriver.com


Cc: rostedt@goodmis.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: default avatarHe Zhe <zhe.he@windriver.com>
[sergey.senozhatsky@gmail.com: More descriptive commit message]
Reviewed-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: default avatarPetr Mladek <pmladek@suse.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent e7ff1141

kernel/printk/printk.c

+3 −2
Original line number Diff line number Diff line
@@ -2358,8 +2358,9 @@ void console_unlock(void) 
		printk_safe_enter_irqsave(flags);

		raw_spin_lock(&logbuf_lock);

		if (console_seq < log_first_seq) {

			len = sprintf(text, "** %u printk messages dropped **\n",

				      (unsigned)(log_first_seq - console_seq));

			len = sprintf(text,

				      "** %llu printk messages dropped **\n",

				      log_first_seq - console_seq);



			/* messages are gone, move to first one */

			console_seq = log_first_seq;