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authorHe Zhe <zhe.he@windriver.com>2018-09-29 18:45:51 +0200
committerPetr Mladek <pmladek@suse.com>2018-10-05 15:02:35 +0200
commit51a72ab7372d85c96104e58036f1b49ba11e5d2b (patch)
tree9275d4abaa2ef2ab6d9bea89750d35336ba9cc3d /kernel/printk/printk.c
parentprintk: Fix panic caused by passing log_buf_len to command line (diff)
downloadlinux-51a72ab7372d85c96104e58036f1b49ba11e5d2b.tar.xz
linux-51a72ab7372d85c96104e58036f1b49ba11e5d2b.zip
printk: Correct wrong casting
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: He Zhe <zhe.he@windriver.com> [sergey.senozhatsky@gmail.com: More descriptive commit message] Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'kernel/printk/printk.c')
-rw-r--r--kernel/printk/printk.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index a14f15ad0f35..d4704baf6aaf 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2358,8 +2358,9 @@ again:
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;