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| author | Xulin Sun <xulin.sun@windriver.com> | 2017-07-13 11:21:01 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-07-28 11:55:50 +0200 |
| commit | 430f13389bdafa6fd9ce2999fed01dca8a5d79ae (patch) | |
| tree | 6ba557cc6088a61f0420d0a0ed34807e48324979 /drivers/crypto/caam | |
| parent | crypto: algif_aead - overhaul memory management (diff) | |
| download | linux-430f13389bdafa6fd9ce2999fed01dca8a5d79ae.tar.xz linux-430f13389bdafa6fd9ce2999fed01dca8a5d79ae.zip | |
crypto: caam - free qman_fq after kill_fq
kill_fq removes a complete frame queue, it needs to free the qman_fq
in the last. Else kmemleak will report the below warning:
unreferenced object 0xffff800073085c80 (size 128):
comm "cryptomgr_test", pid 199, jiffies 4294937850 (age 67.840s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 a0 80 7e 00 00 80 ff ff
00 00 00 00 00 00 00 00 04 00 04 00 5c 01 00 00
backtrace:
[<ffff8000001e5760>] create_object+0xf8/0x258
[<ffff800000994e38>] kmemleak_alloc+0x58/0xa0
[<ffff8000001d5f18>] kmem_cache_alloc_trace+0x2c8/0x358
[<ffff8000007e8410>] create_caam_req_fq+0x40/0x170
[<ffff8000007e870c>] caam_drv_ctx_update+0x54/0x248
[<ffff8000007fca54>] aead_setkey+0x154/0x300
[<ffff800000452120>] setkey+0x50/0xf0
[<ffff80000045b144>] __test_aead+0x5ec/0x1028
[<ffff80000045c28c>] test_aead+0x44/0xc8
[<ffff80000045c368>] alg_test_aead+0x58/0xd0
[<ffff80000045bdb4>] alg_test+0x14c/0x308
[<ffff8000004588e8>] cryptomgr_test+0x50/0x58
[<ffff8000000c3b2c>] kthread+0xdc/0xf0
[<ffff800000083c00>] ret_from_fork+0x10/0x50
And check where the function kill_fq() is called to remove
the additional kfree to qman_fq and avoid re-calling the released qman_fq.
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>
Acked-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam')
| -rw-r--r-- | drivers/crypto/caam/qi.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/crypto/caam/qi.c b/drivers/crypto/caam/qi.c index 6d5a010a1881..9a4151ac5e37 100644 --- a/drivers/crypto/caam/qi.c +++ b/drivers/crypto/caam/qi.c @@ -275,6 +275,7 @@ empty_fq: dev_err(qidev, "OOS of FQID: %u failed\n", fq->fqid); qman_destroy_fq(fq); + kfree(fq); return ret; } @@ -340,8 +341,7 @@ int caam_drv_ctx_update(struct caam_drv_ctx *drv_ctx, u32 *sh_desc) drv_ctx->req_fq = old_fq; if (kill_fq(qidev, new_fq)) - dev_warn(qidev, "New CAAM FQ: %u kill failed\n", - new_fq->fqid); + dev_warn(qidev, "New CAAM FQ kill failed\n"); return ret; } @@ -371,10 +371,9 @@ int caam_drv_ctx_update(struct caam_drv_ctx *drv_ctx, u32 *sh_desc) drv_ctx->req_fq = old_fq; if (kill_fq(qidev, new_fq)) - dev_warn(qidev, "New CAAM FQ: %u kill failed\n", - new_fq->fqid); + dev_warn(qidev, "New CAAM FQ kill failed\n"); } else if (kill_fq(qidev, old_fq)) { - dev_warn(qidev, "Old CAAM FQ: %u kill failed\n", old_fq->fqid); + dev_warn(qidev, "Old CAAM FQ kill failed\n"); } return 0; @@ -508,7 +507,6 @@ int caam_qi_shutdown(struct device *qidev) if (kill_fq(qidev, per_cpu(pcpu_qipriv.rsp_fq, i))) dev_err(qidev, "Rsp FQ kill failed, cpu: %d\n", i); - kfree(per_cpu(pcpu_qipriv.rsp_fq, i)); } /* |