| Message ID | 1425609282-16568-2-git-send-email-yanjiang.jin@windriver.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Herbert Xu |
| Headers | show |
On Fri, 6 Mar 2015 10:34:41 +0800 <yanjiang.jin@windriver.com> wrote: > From: Yanjiang Jin <yanjiang.jin@windriver.com> > > sec4_sg_bytes not being properly initialized causes ahash_done > to try to free unallocated DMA memory: > > caam_jr ffe301000.jr: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0xdeadbeefdeadbeef] [size=3735928559 bytes] > ------------[ cut here ]------------ > WARNING: at lib/dma-debug.c:1093 > Modules linked in: > CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.0.0-rc1+ #6 > task: e9598c00 ti: effca000 task.ti: e95a2000 > NIP: c04ef24c LR: c04ef24c CTR: c0549730 > REGS: effcbd40 TRAP: 0700 Not tainted (4.0.0-rc1+) > MSR: 00029002 <CE,EE,ME> CR: 22008084 XER: 20000000 > > GPR00: c04ef24c effcbdf0 e9598c00 00000096 c08f7424 c00ab2b0 00000000 00000001 > GPR08: c0fe7510 effca000 00000000 000001c3 22008082 00000000 c1048e77 c1050000 > GPR16: c0c36700 493c0040 0000002c e690e4a0 c1054fb4 c18bac40 00029002 c18b0788 > GPR24: 00000014 e690e480 effcbe48 00000000 c0fde128 e6ffac10 deadbeef deadbeef > NIP [c04ef24c] check_unmap+0x93c/0xb40 > LR [c04ef24c] check_unmap+0x93c/0xb40 > Call Trace: > [effcbdf0] [c04ef24c] check_unmap+0x93c/0xb40 (unreliable) > [effcbe40] [c04ef4f4] debug_dma_unmap_page+0xa4/0xc0 > [effcbec0] [c070cda8] ahash_done+0x128/0x1a0 > [effcbef0] [c0700070] caam_jr_dequeue+0x1d0/0x290 > [effcbf40] [c0045f40] tasklet_action+0x110/0x1f0 > [effcbf80] [c0044bc8] __do_softirq+0x188/0x700 > [effcbfe0] [c00455d8] irq_exit+0x108/0x120 > [effcbff0] [c000f520] call_do_irq+0x24/0x3c > [e95a3e20] [c00059b8] do_IRQ+0xc8/0x170 > [e95a3e50] [c0011bc8] ret_from_except+0x0/0x18 > > Signed-off-by: Yanjiang Jin <yanjiang.jin@windriver.com> > --- Acked-by: Kim Phillips <kim.phillips@freescale.com> Thanks, Kim -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index f347ab7..ba0532e 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -1172,6 +1172,7 @@ static int ahash_final_no_ctx(struct ahash_request *req) return -ENOMEM; } + edesc->sec4_sg_bytes = 0; sh_len = desc_len(sh_desc); desc = edesc->hw_desc; init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);