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authorSam Protsenko <semen.protsenko@linaro.org>2015-12-10 19:06:59 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2015-12-14 16:03:37 +0300
commit50eca2561beb0b7d3d43287b9e7cf8a39301c346 (patch)
treed08d8c9435e637bae1ae7c2a436e540479c6fd0d /drivers/crypto/omap-des.c
parent40c18a59d226c94901a2789027c8678fcfcac098 (diff)
downloadlinux-50eca2561beb0b7d3d43287b9e7cf8a39301c346.tar.xz
crypto: omap-des - Fix "schedule while atomic" bug
When using DES module the next bug appears: BUG: scheduling while atomic: kworker/0:1/63/0x00000102 With backtrace as follows: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< cut here >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> [<c0012294>] (dump_backtrace) from [<c00124ac>] (show_stack+0x18/0x1c) [<c0012494>] (show_stack) from [<c0752554>] (dump_stack+0x84/0xc4) [<c07524d0>] (dump_stack) from [<c0750218>] (__schedule_bug+0x54/0x64) [<c07501c4>] (__schedule_bug) from [<c07548a4>] (__schedule+0x4ac/0x53c) [<c07543f8>] (__schedule) from [<c075496c>] (schedule+0x38/0x88) [<c0754934>] (schedule) from [<c03c3984>] (rpm_resume+0x158/0x59c) [<c03c382c>] (rpm_resume) from [<c03c3e1c>] (__pm_runtime_resume+0x54/0x6c) [<c03c3dc8>] (__pm_runtime_resume) from [<c0568ff8>] (omap_des_handle_queue+0x154/0x7bc) [<c0568ea4>] (omap_des_handle_queue) from [<c05696b8>] (omap_des_crypt+0x58/0xbc) [<c0569660>] (omap_des_crypt) from [<c0569730>] (omap_des_cbc_decrypt+0x14/0x18) [<c056971c>] (omap_des_cbc_decrypt) from [<c0297534>] (authenc_verify_ahash_done+0xe0/0xe8) [<c0297454>] (authenc_verify_ahash_done) from [<c056a330>] (omap_sham_finish_req+0x58/0xa8) [<c056a2d8>] (omap_sham_finish_req) from [<c056b714>] (omap_sham_done_task+0x1c0/0x1e0) [<c056b554>] (omap_sham_done_task) from [<c003e53c>] (tasklet_action+0x80/0x118) [<c003e4bc>] (tasklet_action) from [<c003e740>] (__do_softirq+0x11c/0x260) [<c003e624>] (__do_softirq) from [<c003eb64>] (irq_exit+0xc0/0xfc) [<c003eaa4>] (irq_exit) from [<c000f1c4>] (handle_IRQ+0x4c/0x98) [<c000f178>] (handle_IRQ) from [<c0008568>] (gic_handle_irq+0x34/0x64) [<c0008534>] (gic_handle_irq) from [<c0758540>] (__irq_svc+0x40/0x70) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< cut here >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Insight was seen in drivers/crypto/omap-sham.c driver. All credits for this patch go to Grygorii Strashko. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/omap-des.c')
-rw-r--r--drivers/crypto/omap-des.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index 0a70e46d5416..db1ef28e4c9a 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -1086,6 +1086,7 @@ static int omap_des_probe(struct platform_device *pdev)
dd->phys_base = res->start;
pm_runtime_enable(dev);
+ pm_runtime_irq_safe(dev);
err = pm_runtime_get_sync(dev);
if (err < 0) {
pm_runtime_put_noidle(dev);