From: Dmitry Adamushko Date: Wed, 9 Apr 2008 00:41:59 +0000 (-0700) Subject: mtd/chips: add missing set_current_state() to cfi_{amdstd,staa}_sync() X-Git-Tag: v2.6.25-rc9~35 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=f8e30e447c692aaa728c65930ebc0146f65e1e7b;p=linux-2.6-omap-h63xx.git mtd/chips: add missing set_current_state() to cfi_{amdstd,staa}_sync() cfi_amdstd_sync() and cfi_staa_sync() call schedule() without changing task's state appropriately. In case of e.g. chip->state == FL_ERASING, cfi_*_sync() will be busy-looping either redundantly for a fixed interval of time (for SCHED_NORMAL tasks) or possibly endlessly (for RT tasks and UP). Signed-off-by: Dmitry Adamushko Cc: David Woodhouse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index d072e87ce4e..458d477614d 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -1763,6 +1763,7 @@ static void cfi_amdstd_sync (struct mtd_info *mtd) default: /* Not an idle state */ + set_current_state(TASK_UNINTERRUPTIBLE); add_wait_queue(&chip->wq, &wait); spin_unlock(chip->mutex); diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c index b344ff858b2..492e2ab2742 100644 --- a/drivers/mtd/chips/cfi_cmdset_0020.c +++ b/drivers/mtd/chips/cfi_cmdset_0020.c @@ -1015,6 +1015,7 @@ static void cfi_staa_sync (struct mtd_info *mtd) default: /* Not an idle state */ + set_current_state(TASK_UNINTERRUPTIBLE); add_wait_queue(&chip->wq, &wait); spin_unlock_bh(chip->mutex);