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| author | Sam Protsenko <semen.protsenko@linaro.org> | 2015-12-10 19:06:59 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-14 16:03:37 +0300 |
| commit | 50eca2561beb0b7d3d43287b9e7cf8a39301c346 (patch) | |
| tree | d08d8c9435e637bae1ae7c2a436e540479c6fd0d /drivers/crypto/omap-des.c | |
| parent | 40c18a59d226c94901a2789027c8678fcfcac098 (diff) | |
| download | linux-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.c | 1 |
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); |