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| author | Chayan Biswas <Chayan.Biswas@sandisk.com> | 2013-05-22 22:34:49 +0000 |
|---|---|---|
| committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2013-05-23 13:38:59 -0400 |
| commit | cf90bc4830b858487fe4b9b9ecd0031e23ca3e83 (patch) | |
| tree | e5ea89c97b8af24a72cb49cdd451a1f536e1cdeb /drivers/block | |
| parent | 053ab702cc2702f25a97ead087ed344b864785b7 (diff) | |
| download | linux-3.10-cf90bc4830b858487fe4b9b9ecd0031e23ca3e83.tar.gz linux-3.10-cf90bc4830b858487fe4b9b9ecd0031e23ca3e83.tar.bz2 linux-3.10-cf90bc4830b858487fe4b9b9ecd0031e23ca3e83.zip | |
Return the result from user admin command IOCTL even in case of failure
We copy the result to user if the command is completed from the
controller even if it completes with failure (non-zero) status.
A return status of < 0 indicates the command was not completed
by the controller. The user application may expect the error code
in the result field in case of failure.
Signed-off-by: Chayan Biswas <Chayan.Biswas@sandisk.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/nvme-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c index 42abf72d388..84937089d5d 100644 --- a/drivers/block/nvme-core.c +++ b/drivers/block/nvme-core.c @@ -1439,7 +1439,7 @@ static int nvme_user_admin_cmd(struct nvme_dev *dev, nvme_free_iod(dev, iod); } - if (!status && copy_to_user(&ucmd->result, &cmd.result, + if ((status >= 0) && copy_to_user(&ucmd->result, &cmd.result, sizeof(cmd.result))) status = -EFAULT; |