From 4660897e6c2daa198fc8e3f47ae2a4aef69c80b0 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sun, 8 Jul 2007 15:21:58 +0200 Subject: [PATCH] qd65xx: fix PIO mode selection PIO4 is a maximum PIO mode supported by a driver. Using "255" as a max_mode argument to ide_get_best_pio_mode() could result in wrong timings being used by a driver (for "pio" equal to 5) or OOPS (for "pio" values > 5 && < 255). Signed-off-by: Bartlomiej Zolnierkiewicz Acked-by: Sergei Shtylyov Reviewed-by: Alan Cox --- drivers/ide/legacy/qd65xx.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index d1414a75b5..7783745dd1 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -258,8 +258,7 @@ static void qd6580_tune_drive (ide_drive_t *drive, u8 pio) int recovery_time = 415; /* worst case values from the dos driver */ if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) { - pio = ide_get_best_pio_mode(drive, pio, 255, &d); - pio = min_t(u8, pio, 4); + pio = ide_get_best_pio_mode(drive, pio, 4, &d); switch (pio) { case 0: break; -- 2.39.5