diff mbox series

[RESEND,1/2] btrfs-progs: check for no result before using results

Message ID 1546920567-11956-1-git-send-email-anand.jain@oracle.com (mailing list archive)
State New, archived
Headers show
Series [RESEND,1/2] btrfs-progs: check for no result before using results | expand

Commit Message

Anand Jain Jan. 8, 2019, 4:09 a.m. UTC
User space understands the ioctl BTRFS_IOC_DEV_REPLACE command status
using the struct btrfs_ioctl_dev_replace_args::result, and so userspace
initializes this to BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT, so exclude
this value in checking for the error.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 cmds-replace.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/cmds-replace.c b/cmds-replace.c
index b30e6c781e64..42de4de8c031 100644
--- a/cmds-replace.c
+++ b/cmds-replace.c
@@ -296,6 +296,8 @@  static int cmd_replace_start(int argc, char **argv)
 		}
 
 		if (start_args.result !=
+		    BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT &&
+		    start_args.result !=
 		    BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR) {
 			error("ioctl(DEV_REPLACE_START) on '%s' returns error: %s",
 				path,