diff options
| author | Gopal Tiwari <gtiwari@redhat.com> | 2021-04-14 14:16:45 +0530 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-04-15 08:12:56 +0200 |
| commit | d6609084b0b81abc74dc9db0281cdd0e074df5d4 (patch) | |
| tree | 906f915778d6faa537133a5877af207bf5b74518 | |
| parent | a9e0e6bc728ebcfe9f6acdca84e5c6cafee895cf (diff) | |
nvme: fix NULL derefence in nvme_ctrl_fast_io_fail_tmo_show/store
Adding entry for dev_attr_fast_io_fail_tmo to avoid the kernel crash
while reading and writing the fast_io_fail_tmo.
Fixes: 09fbed636382 (nvme: export fast_io_fail_tmo to sysfs)
Signed-off-by: Gopal Tiwari <gtiwari@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | drivers/nvme/host/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 288ac47ff5b4..40f08e6325ef 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3379,6 +3379,8 @@ static umode_t nvme_dev_attrs_are_visible(struct kobject *kobj, return 0; if (a == &dev_attr_reconnect_delay.attr && !ctrl->opts) return 0; + if (a == &dev_attr_fast_io_fail_tmo.attr && !ctrl->opts) + return 0; return a->mode; } |