Avoid oops on systems that set atkbd_reset.

9e8626bd · Richard Henderson · Richard Henderson · 820447aa · 9e8626bd
Commit 9e8626bd authored Oct 10, 2002 by Richard Henderson Committed by Richard Henderson Oct 10, 2002
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Showing with 3 additions and 2 deletions

drivers/input/keyboard/atkbd.c drivers/input/keyboard/atkbd.c +3 -2

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--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -244,8 +244,9 @@ static int atkbd_command(struct atkbd *atkbd, unsigned char *param, int command)
 	while (atkbd->cmdcnt && timeout--) udelay(10);
-	for (i = 0; i < receive; i++)
+	if (param)
-		param[i] = atkbd->cmdbuf[(receive - 1) - i];
+		for (i = 0; i < receive; i++)
+			param[i] = atkbd->cmdbuf[(receive - 1) - i];
 	if (atkbd->cmdcnt) 
 		return (atkbd->cmdcnt = 0) - 1;