nvmet: fix a memory leak
We need to also free the dhchap_ctrl_secret when releasing nvmet_host. kmemleak complaint: -- unreferenced object 0xffff99b1cbca5140 (size 64): comm "check", pid 4864, jiffies 4305092436 (age 2913.583s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 65 36 2b 41 63 44 DHHC-1:00:e6+AcD 39 76 47 4d 52 57 59 78 67 54 47 44 51 59 47 78 9vGMRWYxgTGDQYGx backtrace: [<00000000c07d369d>] kstrdup+0x2e/0x60 [<000000001372171c>] 0xffffffffc0cceec6 [<0000000010dbf50b>] 0xffffffffc0cc6783 [<000000007465e93c>] configfs_write_iter+0xb1/0x120 [<0000000039c23f62>] vfs_write+0x2be/0x3c0 [<000000002da4351c>] ksys_write+0x5f/0xe0 [<00000000d5011e32>] do_syscall_64+0x38/0x90 [<00000000503870cf>] entry_SYSCALL_64_after_hwframe+0x63/0xcd Fixes: db1312dd ("nvmet: implement basic In-Band Authentication") Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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