From: Victoria Milhoan Date: Wed, 5 Aug 2015 18:28:40 +0000 (-0700) Subject: crypto: caam - Correct DMA unmap size in ahash_update_ctx() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7d5196aba3c81999d56b26daa5ea7590513cdc1f;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git crypto: caam - Correct DMA unmap size in ahash_update_ctx() This change fixes: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 456 at lib/dma-debug.c:1103 check_unmap+0x438/0x958() caam_jr 2101000.jr0: DMA-API: device driver frees DMA memory with different size [device address=0x000000003a241080] [map ] Modules linked in: tcrypt(+) CPU: 0 PID: 456 Comm: insmod Not tainted 4.1.0-248766-gf823586-dirty #82 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [<80015e0c>] (unwind_backtrace) from [<80012764>] (show_stack+0x10/0x14) [<80012764>] (show_stack) from [<806df8e8>] (dump_stack+0x84/0xc4) [<806df8e8>] (dump_stack) from [<800266fc>] (warn_slowpath_common+0x84/0xb4) [<800266fc>] (warn_slowpath_common) from [<8002675c>] (warn_slowpath_fmt+0x30/0x40) [<8002675c>] (warn_slowpath_fmt) from [<802c7db8>] (check_unmap+0x438/0x958) [<802c7db8>] (check_unmap) from [<802c835c>] (debug_dma_unmap_page+0x84/0x8c) [<802c835c>] (debug_dma_unmap_page) from [<804d3b94>] (ahash_update_ctx+0xb08/0xec4) [<804d3b94>] (ahash_update_ctx) from [<7f002984>] (test_ahash_pnum.isra.9.constprop.19+0x2b8/0x514 [tcrypt]) [<7f002984>] (test_ahash_pnum.isra.9.constprop.19 [tcrypt]) from [<7f005998>] (do_test+0x2db8/0x37cc [tcrypt]) [<7f005998>] (do_test [tcrypt]) from [<7f00b050>] (tcrypt_mod_init+0x50/0x9c [tcrypt]) [<7f00b050>] (tcrypt_mod_init [tcrypt]) from [<80009730>] (do_one_initcall+0x8c/0x1d4) [<80009730>] (do_one_initcall) from [<806dda4c>] (do_init_module+0x5c/0x1a8) [<806dda4c>] (do_init_module) from [<80085308>] (load_module+0x17e0/0x1da0) [<80085308>] (load_module) from [<80085998>] (SyS_init_module+0xd0/0x120) [<80085998>] (SyS_init_module) from [<8000f4c0>] (ret_fast_syscall+0x0/0x3c) ---[ end trace 60807cfb6521c79f ]--- Signed-off-by: Victoria Milhoan Tested-by: Horia Geantă Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index 2361beb9fe55..16c03f84fd9a 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -829,7 +829,7 @@ static int ahash_update_ctx(struct ahash_request *req) state->buf_dma = try_buf_map_to_sec4_sg(jrdev, edesc->sec4_sg + 1, buf, state->buf_dma, - *buflen, last_buflen); + *next_buflen, *buflen); if (src_nents) { src_map_to_sec4_sg(jrdev, req->src, src_nents,