This can happen in cases like bug #102951[1], so add a proper debug msg as done in wait_read. Also, change wait_read debug message to differ from wait_write.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=102951 Signed-off-by: Marcos Paulo de Souza <marcos.souza....@gmail.com> --- Changes from v1: * use dbg instead of pr_warn drivers/input/serio/i8042.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 62685a7..cba6831 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -312,8 +312,10 @@ static int __i8042_command(unsigned char *param, int command) for (i = 0; i < ((command >> 12) & 0xf); i++) { error = i8042_wait_write(); - if (error) + if (error) { + dbg(" -- i8042 (timeout wait_write)\n"); return error; + } dbg("%02x -> i8042 (parameter)\n", param[i]); i8042_write_data(param[i]); } @@ -321,7 +323,7 @@ static int __i8042_command(unsigned char *param, int command) for (i = 0; i < ((command >> 8) & 0xf); i++) { error = i8042_wait_read(); if (error) { - dbg(" -- i8042 (timeout)\n"); + dbg(" -- i8042 (timeout wait_read)\n"); return error; } -- 2.9.3
