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| author | John Ogness <john.ogness@linutronix.de> | 2024-08-20 08:35:27 +0206 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2024-08-21 14:56:22 +0200 |
| commit | eda25860bf6e71932311f1b5acdf8fc05cd84ff3 (patch) | |
| tree | 6c2c15eaa0427e820dabcf4d5117eea6e04b95cf /kernel/printk/printk.c | |
| parent | b0da640826ba3b6506b4996a6b23a429235e6923 (diff) | |
| download | lwn-eda25860bf6e71932311f1b5acdf8fc05cd84ff3.tar.gz lwn-eda25860bf6e71932311f1b5acdf8fc05cd84ff3.zip | |
printk: Add notation to console_srcu locking
kernel/printk/printk.c:284:5: sparse: sparse: context imbalance in
'console_srcu_read_lock' - wrong count at exit
include/linux/srcu.h:301:9: sparse: sparse: context imbalance in
'console_srcu_read_unlock' - unexpected unlock
Fixes: 6c4afa79147e ("printk: Prepare for SRCU console list protection")
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20240820063001.36405-2-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'kernel/printk/printk.c')
| -rw-r--r-- | kernel/printk/printk.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index c22b07049c38..93c67eb7ca9e 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -282,6 +282,7 @@ EXPORT_SYMBOL(console_list_unlock); * Return: A cookie to pass to console_srcu_read_unlock(). */ int console_srcu_read_lock(void) + __acquires(&console_srcu) { return srcu_read_lock_nmisafe(&console_srcu); } @@ -295,6 +296,7 @@ EXPORT_SYMBOL(console_srcu_read_lock); * Counterpart to console_srcu_read_lock() */ void console_srcu_read_unlock(int cookie) + __releases(&console_srcu) { srcu_read_unlock_nmisafe(&console_srcu, cookie); } |