crypto: caam - fix uninitialized S/G table size in ahash_digest
Not initializing edesc->sec4_sg_bytes correctly causes ahash_done
callback to free unallocated DMA memory:
caam_jr
ffe301000.jr: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x300900000000b44d] [size=46158 bytes]
WARNING: at lib/dma-debug.c:1080
Modules linked in: caamhash(+) [last unloaded: caamhash]
CPU: 0 PID: 1358 Comm: cryptomgr_test Tainted: G W 3.16.0-rc1 #23
task:
eed04250 ti:
effd2000 task.ti:
c6046000
NIP:
c02889fc LR:
c02889fc CTR:
c02d7020
REGS:
effd3d50 TRAP: 0700 Tainted: G W (3.16.0-rc1)
MSR:
00029002 <CE,EE,ME> CR:
44048082 XER:
00000000
GPR00:
c02889fc effd3e00 eed04250 00000091 c1de3478 c1de382c 00000000 00029002
GPR08:
00000007 00000000 01660000 00000000 22048082 00000000 00000018 c07db080
GPR16:
00000006 00000100 0000002c ee2497e0 c07e1e10 c0da1180 00029002 c0d912c8
GPR24:
00000014 ee2497c0 effd3e58 00000000 c078ad4c ee130210 30090000 0000b44d
NIP [
c02889fc] check_unmap+0x8ac/0xab0
LR [
c02889fc] check_unmap+0x8ac/0xab0
Call Trace:
[
effd3e00] [
c02889fc] check_unmap+0x8ac/0xab0 (unreliable)
[
effd3e50] [
c0288c78] debug_dma_unmap_page+0x78/0x90
[
effd3ed0] [
f9404fec] ahash_done+0x11c/0x190 [caamhash]
[
effd3f00] [
c0429640] caam_jr_dequeue+0x1c0/0x280
[
effd3f50] [
c002c94c] tasklet_action+0xcc/0x1a0
[
effd3f80] [
c002cb30] __do_softirq+0x110/0x220
[
effd3fe0] [
c002cf34] irq_exit+0xa4/0xe0
[
effd3ff0] [
c000d834] call_do_irq+0x24/0x3c
[
c6047ae0] [
c000489c] do_IRQ+0x8c/0x110
[
c6047b00] [
c000f86c] ret_from_except+0x0/0x18
--- Exception: 501 at _raw_spin_unlock_irq+0x30/0x50
LR = _raw_spin_unlock_irq+0x2c/0x50
[
c6047bd0] [
c0590158] wait_for_common+0xb8/0x170
[
c6047c10] [
c059024c] wait_for_completion_interruptible+0x1c/0x40
[
c6047c20] [
c022fc78] do_one_async_hash_op.isra.2.part.3+0x18/0x40
[
c6047c30] [
c022ff98] __test_hash+0x2f8/0x6c0
[
c6047de0] [
c0230388] test_hash+0x28/0xb0
[
c6047e00] [
c0230458] alg_test_hash+0x48/0xc0
[
c6047e20] [
c022fa94] alg_test+0x114/0x2e0
[
c6047ea0] [
c022cd1c] cryptomgr_test+0x4c/0x60
[
c6047eb0] [
c00497a4] kthread+0xc4/0xe0
[
c6047f40] [
c000f2fc] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
41de01c8 80a9002c 2f850000 40fe0008 80a90008 80fa0018 3c60c06d 811a001c
3863f4a4 813a0020 815a0024 4830cd01 <
0fe00000>
81340048 2f890000 40feff48
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
projects / kernel.git / commit