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| author |   Cyril Bur <cyrilbur@gmail.com> | 2017-11-03 13:41:37 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-11-06 20:20:26 +1100 |
| commit | 44e2aa2b16a872fa8aa4901b3793132e6cfd293a (patch) | |
| tree | f7311cd56ba0daf1aa5979568403076bbc3ceb17 /drivers/mtd/devices/powernv_flash.c | |
| parent | powerpc/opal: Fix EBUSY bug in acquiring tokens (diff) | |
| download | linux-dev-44e2aa2b16a872fa8aa4901b3793132e6cfd293a.tar.xz linux-dev-44e2aa2b16a872fa8aa4901b3793132e6cfd293a.zip | |
mtd: powernv_flash: Use WARN_ON_ONCE() rather than BUG_ON()
BUG_ON() should be reserved in situations where we can not longer
guarantee the integrity of the system. In the case where
powernv_flash_async_op() receives an impossible op, we can still
guarantee the integrity of the system.
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/mtd/devices/powernv_flash.c')
| -rw-r--r-- | drivers/mtd/devices/powernv_flash.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mtd/devices/powernv_flash.c b/drivers/mtd/devices/powernv_flash.c index f5396f26ddb4..f9ec38281ff2 100644 --- a/drivers/mtd/devices/powernv_flash.c +++ b/drivers/mtd/devices/powernv_flash.c @@ -78,7 +78,9 @@ static int powernv_flash_async_op(struct mtd_info *mtd, enum flash_op op, rc = opal_flash_erase(info->id, offset, len, token); break; default: - BUG_ON(1); + WARN_ON_ONCE(1); + opal_async_release_token(token); + return -EIO; } if (rc != OPAL_ASYNC_COMPLETION) { |