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Input: libps2 - warn instead of oopsing when passed bad arguments 

This is more user-friendly and also fixes Coverity #id 249

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2006-07-06 23:54:48 -04:00
parent 699756199d
commit 95349fe814
1 changed files with 5 additions and 0 deletions
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5
drivers/input/serio/libps2.c
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@ -177,6 +177,11 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
return -1;
}
if (send && !param) {
WARN_ON(1);
return -1;
}
mutex_lock_nested(&ps2dev->cmd_mutex, SINGLE_DEPTH_NESTING);
serio_pause_rx(ps2dev->serio);