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authorDmitry Adamushko <dmitry.adamushko@gmail.com>2008-04-08 17:41:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-08 18:25:53 -0700
commitf8e30e447c692aaa728c65930ebc0146f65e1e7b (patch)
tree32f6ac1293266be63ae6125868d08f7c39668177 /drivers/mtd
parentb9ad8985f25c158e71844c78277a0c0b3779d0d3 (diff)
downloadop-kernel-dev-f8e30e447c692aaa728c65930ebc0146f65e1e7b.zip
op-kernel-dev-f8e30e447c692aaa728c65930ebc0146f65e1e7b.tar.gz
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 <dmitry.adamushko@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c1
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0020.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index d072e87..458d477 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 b344ff8..492e2ab 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);
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