[PATCH 1/2] crypto: qat - dont release uninitialized resources
From: Tong Zhang
Date: Fri Mar 12 2021 - 02:45:40 EST
adf_vf_isr_resource_alloc() is not unwinding correctly when error
happens and it trys to release uninitialized resources.
To fix this, only release initialized resources.
[ 1.792594] ------------[ cut here ]------------
[ 1.792845] Trying to free already-free IRQ 11
[ 1.793091] WARNING: CPU: 0 PID: 182 at kernel/irq/manage.c:1821 free_irq+0x202/0x380
[ 1.793518] Modules linked in: qat_c3xxxvf(+) drm snd_pcm intel_qat snd_timer snd joydev psmouse 4
[ 1.794998] CPU: 0 PID: 182 Comm: systemd-udevd Not tainted 5.12.0-rc2+ #78
[ 1.795379] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd9c812dda519-4
[ 1.795986] RIP: 0010:free_irq+0x202/0x380
[ 1.796211] Code: e8 23 6a 1b 00 48 83 c4 10 4c 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 8b 75 d0 40
[ 1.797215] RSP: 0018:ffffc90000ce3970 EFLAGS: 00010082
[ 1.797500] RAX: 0000000000000000 RBX: ffff888104b75200 RCX: 0000000000000027
[ 1.797886] RDX: 0000000000000027 RSI: 00000000ffffdfff RDI: ffff88817bc18448
[ 1.798270] RBP: ffffc90000ce39a8 R08: ffff88817bc18440 R09: ffffc90000ce3730
[ 1.798655] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881001c2200
[ 1.799040] R13: ffff8881001c2360 R14: ffff8881001c22a4 R15: ffff8881008b30c8
[ 1.799434] FS: 00007f2313cd38c0(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000
[ 1.799871] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.800183] CR2: 00007ffc6f4b4080 CR3: 0000000104a3c000 CR4: 00000000000006f0
[ 1.800569] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1.800954] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1.801340] Call Trace:
[ 1.801477] adf_vf_isr_resource_free+0x32/0xb0 [intel_qat]
[ 1.801785] adf_vf_isr_resource_alloc+0x14d/0x150 [intel_qat]
[ 1.802105] adf_dev_init+0xba/0x140 [intel_qat]
[ 1.802365] adf_probe+0x32f/0x370 [qat_c3xxxvf]
[ 1.802620] local_pci_probe+0x48/0x80
[ 1.802827] pci_device_probe+0x10f/0x1c0
[ 1.803048] really_probe+0xfb/0x420
[ 1.803249] driver_probe_device+0xe9/0x160
[ 1.803479] device_driver_attach+0x5d/0x70
[ 1.803709] __driver_attach+0x8f/0x150
[ 1.803920] ? device_driver_attach+0x70/0x70
[ 1.804159] bus_for_each_dev+0x7e/0xc0
[ 1.804370] driver_attach+0x1e/0x20
[ 1.804568] bus_add_driver+0x152/0x1f0
[ 1.804779] driver_register+0x74/0xd0
[ 1.804986] ? 0xffffffffc009b000
[ 1.805169] __pci_register_driver+0x54/0x60
[ 1.805404] adfdrv_init+0x34/0x1000 [qat_c3xxxvf]
[ 1.805667] do_one_initcall+0x48/0x1d0
[ 1.805879] ? __slab_alloc+0x20/0x40
[ 1.806081] ? kmem_cache_alloc_trace+0x390/0x440
[ 1.806338] ? do_init_module+0x28/0x250
[ 1.806555] do_init_module+0x62/0x250
[ 1.806762] load_module+0x23ee/0x26a0
[ 1.806970] __do_sys_finit_module+0xc2/0x120
[ 1.807211] ? __do_sys_finit_module+0xc2/0x120
[ 1.807460] __x64_sys_finit_module+0x1a/0x20
[ 1.807693] do_syscall_64+0x38/0x90
[ 1.807892] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 1.808167] RIP: 0033:0x7f2312b50469
[ 1.808365] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48
[ 1.809368] RSP: 002b:00007ffeae1d29e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1.809775] RAX: ffffffffffffffda RBX: 000055909ee6aee0 RCX: 00007f2312b50469
[ 1.810159] RDX: 0000000000000000 RSI: 00007f2313469265 RDI: 0000000000000010
[ 1.810543] RBP: 00007f2313469265 R08: 0000000000000000 R09: 00007ffeae1d2f60
[ 1.810927] R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000000000
[ 1.811312] R13: 000055909ee6afe0 R14: 0000000000020000 R15: 000055909dd2fefc
[ 1.811697] ---[ end trace ff698e93b7952e56 ]---
[ 1.811962] BUG: unable to handle page fault for address: ffffebde000003c8
[ 1.812341] #PF: supervisor read access in kernel mode
[ 1.812621] #PF: error_code(0x0000) - not-present page
[ 1.812902] PGD 0 P4D 0
[ 1.813044] Oops: 0000 [#1] SMP NOPTI
[ 1.813246] CPU: 0 PID: 182 Comm: systemd-udevd Tainted: G W 5.12.0-rc2+ #78
[ 1.813697] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd9c812dda519-4
[ 1.814302] RIP: 0010:kfree+0x5d/0x420
[ 1.814508] Code: db 4d 01 fd 0f 82 c8 03 00 00 49 c7 c4 00 00 00 80 4c 2b 25 e5 f1 1c 01 4d 01 ed
[ 1.815518] RSP: 0018:ffffc90000ce3970 EFLAGS: 00010286
[ 1.815803] RAX: 1000000000000401 RBX: 0000000000000000 RCX: 0000000000000000
[ 1.816189] RDX: ffff8881047291b0 RSI: ffffffffc01a72cf RDI: 000000000000f000
[ 1.816575] RBP: ffffc90000ce39a8 R08: ffff88817bc18440 R09: 0000000000000246
[ 1.816961] R10: 0000000000000001 R11: 0000000000000001 R12: ffffebde000003c0
[ 1.817348] R13: 000000008000f000 R14: 0000000000000000 R15: 000000000000f000
[ 1.817734] FS: 00007f2313cd38c0(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000
[ 1.818170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.818483] CR2: ffffebde000003c8 CR3: 0000000104a3c000 CR4: 00000000000006f0
[ 1.818871] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1.819259] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1.819645] Call Trace:
[ 1.819781] adf_vf_isr_resource_free+0x9f/0xb0 [intel_qat]
[ 1.820088] adf_vf_isr_resource_alloc+0x14d/0x150 [intel_qat]
[ 1.820408] adf_dev_init+0xba/0x140 [intel_qat]
[ 1.820664] adf_probe+0x32f/0x370 [qat_c3xxxvf]
[ 1.820918] local_pci_probe+0x48/0x80
[ 1.821126] pci_device_probe+0x10f/0x1c0
[ 1.821347] really_probe+0xfb/0x420
[ 1.821544] driver_probe_device+0xe9/0x160
[ 1.821774] device_driver_attach+0x5d/0x70
[ 1.822004] __driver_attach+0x8f/0x150
[ 1.822228] ? device_driver_attach+0x70/0x70
[ 1.822471] bus_for_each_dev+0x7e/0xc0
[ 1.822684] driver_attach+0x1e/0x20
[ 1.822883] bus_add_driver+0x152/0x1f0
[ 1.823098] driver_register+0x74/0xd0
[ 1.823305] ? 0xffffffffc009b000
[ 1.823490] __pci_register_driver+0x54/0x60
[ 1.823725] adfdrv_init+0x34/0x1000 [qat_c3xxxvf]
[ 1.823988] do_one_initcall+0x48/0x1d0
[ 1.824200] ? __slab_alloc+0x20/0x40
[ 1.824403] ? kmem_cache_alloc_trace+0x390/0x440
[ 1.824662] ? do_init_module+0x28/0x250
[ 1.824879] do_init_module+0x62/0x250
[ 1.825087] load_module+0x23ee/0x26a0
[ 1.825296] __do_sys_finit_module+0xc2/0x120
[ 1.825535] ? __do_sys_finit_module+0xc2/0x120
[ 1.825785] __x64_sys_finit_module+0x1a/0x20
[ 1.826025] do_syscall_64+0x38/0x90
[ 1.826223] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 1.826500] RIP: 0033:0x7f2312b50469
[ 1.826697] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48
[ 1.827708] RSP: 002b:00007ffeae1d29e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1.828118] RAX: ffffffffffffffda RBX: 000055909ee6aee0 RCX: 00007f2312b50469
[ 1.828504] RDX: 0000000000000000 RSI: 00007f2313469265 RDI: 0000000000000010
[ 1.828890] RBP: 00007f2313469265 R08: 0000000000000000 R09: 00007ffeae1d2f60
[ 1.829276] R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000000000
[ 1.829662] R13: 000055909ee6afe0 R14: 0000000000020000 R15: 000055909dd2fefc
[ 1.830049] Modules linked in: qat_c3xxxvf(+) drm snd_pcm intel_qat snd_timer snd joydev psmouse 4
[ 1.831540] CR2: ffffebde000003c8
[ 1.831724] ---[ end trace ff698e93b7952e57 ]---
[ 1.831976] RIP: 0010:kfree+0x5d/0x420
[ 1.832184] Code: db 4d 01 fd 0f 82 c8 03 00 00 49 c7 c4 00 00 00 80 4c 2b 25 e5 f1 1c 01 4d 01 ed
[ 1.833214] RSP: 0018:ffffc90000ce3970 EFLAGS: 00010286
[ 1.833503] RAX: 1000000000000401 RBX: 0000000000000000 RCX: 0000000000000000
[ 1.833894] RDX: ffff8881047291b0 RSI: ffffffffc01a72cf RDI: 000000000000f000
[ 1.834286] RBP: ffffc90000ce39a8 R08: ffff88817bc18440 R09: 0000000000000246
[ 1.834677] R10: 0000000000000001 R11: 0000000000000001 R12: ffffebde000003c0
[ 1.835068] R13: 000000008000f000 R14: 0000000000000000 R15: 000000000000f000
[ 1.835462] FS: 00007f2313cd38c0(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000
[ 1.835906] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.836222] CR2: ffffebde000003c8 CR3: 0000000104a3c000 CR4: 00000000000006f0
[ 1.836614] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1.837003] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Signed-off-by: Tong Zhang <ztong0001@xxxxxxxxx>
---
drivers/crypto/qat/qat_common/adf_vf_isr.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/qat/qat_common/adf_vf_isr.c b/drivers/crypto/qat/qat_common/adf_vf_isr.c
index 38d316a42ba6..888388acb6bd 100644
--- a/drivers/crypto/qat/qat_common/adf_vf_isr.c
+++ b/drivers/crypto/qat/qat_common/adf_vf_isr.c
@@ -261,17 +261,26 @@ int adf_vf_isr_resource_alloc(struct adf_accel_dev *accel_dev)
goto err_out;
if (adf_setup_pf2vf_bh(accel_dev))
- goto err_out;
+ goto err_disable_msi;
if (adf_setup_bh(accel_dev))
- goto err_out;
+ goto err_cleanup_pf2vf_bh;
if (adf_request_msi_irq(accel_dev))
- goto err_out;
+ goto err_cleanup_bh;
return 0;
+
+err_cleanup_bh:
+ adf_cleanup_bh(accel_dev);
+
+err_cleanup_pf2vf_bh:
+ adf_cleanup_pf2vf_bh(accel_dev);
+
+err_disable_msi:
+ adf_disable_msi(accel_dev);
+
err_out:
- adf_vf_isr_resource_free(accel_dev);
return -EFAULT;
}
EXPORT_SYMBOL_GPL(adf_vf_isr_resource_alloc);
--
2.25.1