| Message ID | 1500674969-12906-1-git-send-email-hotran@apm.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Delegated to: | Rafael Wysocki |
| Headers | show |
On Friday, July 21, 2017 03:09:29 PM Hoan Tran wrote: > When PCCT is not available, kernel crashes as below when requests PCC > channel 0. This patch fixes this issue. > > [ 0.920454] PCCT header not found. > ... > [ 8.031309] Unable to handle kernel NULL pointer dereference at virtual address 00000010 > [ 8.031310] [0000000000000010] user address but active_mm is swapper > [ 8.031312] Internal error: Oops: 96000004 [#1] PREEMPT SMP > [ 8.031313] Modules linked in: > [ 8.031316] CPU: 31 PID: 1 Comm: swapper/0 Tainted: G W 4.13.0-rc1 #18 > [ 8.031317] Hardware name: AppliedMicro(R) 07/20/2017 > [ 8.031318] task: ffff809ef3b08000 task.stack: ffff809ef3b10000 > [ 8.031322] PC is at pcc_mbox_request_channel+0x8c/0x160 > [ 8.031325] LR is at xgene_slimpro_i2c_probe+0x1c0/0x378 > [ 8.031326] pc : [<ffff000008899450>] lr : [<ffff000008819dac>] pstate: 00000045 > [ 8.031327] sp : ffff809ef3b13bd0 > [ 8.031327] x29: ffff809ef3b13bd0 x28: ffff000008ed90a0 > [ 8.031329] x27: ffff000009091000 x26: ffff000008e50470 > [ 8.031330] x25: ffff000008ed9100 x24: ffff809eefd9ac30 > [ 8.031332] x23: 0000000000000000 x22: ffff0000090e3e10 > [ 8.031333] x21: ffff0000090e3000 x20: 0000000000000000 > [ 8.031335] x19: 0000000000000000 x18: 0000000000087ffc > [ 8.031336] x17: 2fe48d76a78303f0 x16: 0000000000087ffc > [ 8.031337] x15: ffff000000000000 x14: 0000000000000000 > [ 8.031339] x13: 0000000000000000 x12: 0000000000000018 > [ 8.031340] x11: 0000000000000018 x10: 0101010101010101 > [ 8.031342] x9 : 0000000000000000 x8 : 7f7f7f7f7f7f7f7f > [ 8.031343] x7 : fefefefeff6b646d x6 : 0000008080808080 > [ 8.031345] x5 : 0000000000000000 x4 : 0000000000000001 > [ 8.031346] x3 : 0000000000000000 x2 : ffff000008819b64 > [ 8.031348] x1 : 0000000000000000 x0 : 0000000000000000 > ... > [ 8.031393] Call trace: > [ 8.031394] Exception stack(0xffff809ef3b13a00 to 0xffff809ef3b13b30) > [ 8.031395] 3a00: 0000000000000000 0001000000000000 ffff809ef3b13bd0 ffff000008899450 > [ 8.031397] 3a20: ffff809f7e1f9a10 ffff000008f60be0 0000000000000001 ffff809ef3b13b7c > [ 8.031398] 3a40: ffff809f7e1f9a10 0000000000000000 ffff000009091000 0000000000000003 > [ 8.031399] 3a60: ffff000009091000 0000000000000003 ffff809ef3b13a80 ffff0000084e0794 > [ 8.031400] 3a80: ffff809ef3b13a90 ffff00000850bb64 ffff809ef3b13ad0 ffff00000850bf34 > [ 8.031402] 3aa0: 0000000000000000 0000000000000000 ffff000008819b64 0000000000000000 > [ 8.031403] 3ac0: 0000000000000001 0000000000000000 0000008080808080 fefefefeff6b646d > [ 8.031404] 3ae0: 7f7f7f7f7f7f7f7f 0000000000000000 0101010101010101 0000000000000018 > [ 8.031405] 3b00: 0000000000000018 0000000000000000 0000000000000000 ffff000000000000 > [ 8.031406] 3b20: 0000000000087ffc 2fe48d76a78303f0 > [ 8.031409] [<ffff000008899450>] pcc_mbox_request_channel+0x8c/0x160 > [ 8.031410] [<ffff000008819dac>] xgene_slimpro_i2c_probe+0x1c0/0x378 > [ 8.031413] [<ffff0000085e84dc>] platform_drv_probe+0x50/0xbc > [ 8.031414] [<ffff0000085e68a4>] driver_probe_device+0x21c/0x2d0 > [ 8.031416] [<ffff0000085e6a04>] __driver_attach+0xac/0xb0 > [ 8.031417] [<ffff0000085e4a78>] bus_for_each_dev+0x58/0x98 > [ 8.031418] [<ffff0000085e61e4>] driver_attach+0x20/0x28 > [ 8.031419] [<ffff0000085e5e0c>] bus_add_driver+0x1c8/0x22c > [ 8.031421] [<ffff0000085e7324>] driver_register+0x60/0xf4 > [ 8.031422] [<ffff0000085e8420>] __platform_driver_register+0x4c/0x54 > [ 8.031425] [<ffff000008e96dd0>] xgene_slimpro_i2c_driver_init+0x18/0x20 > [ 8.031426] [<ffff000008083144>] do_one_initcall+0x38/0x124 > [ 8.031429] [<ffff000008e50d0c>] kernel_init_freeable+0x190/0x22c > [ 8.031431] [<ffff0000089eac30>] kernel_init+0x10/0xfc > [ 8.031432] [<ffff000008082ec0>] ret_from_fork+0x10/0x50 > [ 8.031434] Code: cb030e63 8b030013 b140067f 54fffda8 (f9400a61) > [ 8.031448] ---[ end trace 14eb48a4e1e1f9fb ]--- > > Signed-off-by: Hoan Tran <hotran@apm.com> > --- > drivers/mailbox/pcc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c > index ac91fd0..cbca5e5 100644 > --- a/drivers/mailbox/pcc.c > +++ b/drivers/mailbox/pcc.c > @@ -92,7 +92,7 @@ > */ > static struct mbox_chan *get_pcc_channel(int id) > { > - if (id < 0 || id > pcc_mbox_ctrl.num_chans) > + if (id < 0 || id >= pcc_mbox_ctrl.num_chans) > return ERR_PTR(-ENOENT); > > return &pcc_mbox_channels[id]; > Prashanth, Ashwin, comments? -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 7/24/2017 2:32 PM, Rafael J. Wysocki wrote: > On Friday, July 21, 2017 03:09:29 PM Hoan Tran wrote: >> When PCCT is not available, kernel crashes as below when requests PCC >> channel 0. This patch fixes this issue. >> >> [ 0.920454] PCCT header not found. >> ... >> [ 8.031309] Unable to handle kernel NULL pointer dereference at virtual address 00000010 >> [ 8.031310] [0000000000000010] user address but active_mm is swapper >> [ 8.031312] Internal error: Oops: 96000004 [#1] PREEMPT SMP >> [ 8.031313] Modules linked in: >> [ 8.031316] CPU: 31 PID: 1 Comm: swapper/0 Tainted: G W 4.13.0-rc1 #18 >> [ 8.031317] Hardware name: AppliedMicro(R) 07/20/2017 >> [ 8.031318] task: ffff809ef3b08000 task.stack: ffff809ef3b10000 >> [ 8.031322] PC is at pcc_mbox_request_channel+0x8c/0x160 >> [ 8.031325] LR is at xgene_slimpro_i2c_probe+0x1c0/0x378 >> [ 8.031326] pc : [<ffff000008899450>] lr : [<ffff000008819dac>] pstate: 00000045 >> [ 8.031327] sp : ffff809ef3b13bd0 >> [ 8.031327] x29: ffff809ef3b13bd0 x28: ffff000008ed90a0 >> [ 8.031329] x27: ffff000009091000 x26: ffff000008e50470 >> [ 8.031330] x25: ffff000008ed9100 x24: ffff809eefd9ac30 >> [ 8.031332] x23: 0000000000000000 x22: ffff0000090e3e10 >> [ 8.031333] x21: ffff0000090e3000 x20: 0000000000000000 >> [ 8.031335] x19: 0000000000000000 x18: 0000000000087ffc >> [ 8.031336] x17: 2fe48d76a78303f0 x16: 0000000000087ffc >> [ 8.031337] x15: ffff000000000000 x14: 0000000000000000 >> [ 8.031339] x13: 0000000000000000 x12: 0000000000000018 >> [ 8.031340] x11: 0000000000000018 x10: 0101010101010101 >> [ 8.031342] x9 : 0000000000000000 x8 : 7f7f7f7f7f7f7f7f >> [ 8.031343] x7 : fefefefeff6b646d x6 : 0000008080808080 >> [ 8.031345] x5 : 0000000000000000 x4 : 0000000000000001 >> [ 8.031346] x3 : 0000000000000000 x2 : ffff000008819b64 >> [ 8.031348] x1 : 0000000000000000 x0 : 0000000000000000 >> ... >> [ 8.031393] Call trace: >> [ 8.031394] Exception stack(0xffff809ef3b13a00 to 0xffff809ef3b13b30) >> [ 8.031395] 3a00: 0000000000000000 0001000000000000 ffff809ef3b13bd0 ffff000008899450 >> [ 8.031397] 3a20: ffff809f7e1f9a10 ffff000008f60be0 0000000000000001 ffff809ef3b13b7c >> [ 8.031398] 3a40: ffff809f7e1f9a10 0000000000000000 ffff000009091000 0000000000000003 >> [ 8.031399] 3a60: ffff000009091000 0000000000000003 ffff809ef3b13a80 ffff0000084e0794 >> [ 8.031400] 3a80: ffff809ef3b13a90 ffff00000850bb64 ffff809ef3b13ad0 ffff00000850bf34 >> [ 8.031402] 3aa0: 0000000000000000 0000000000000000 ffff000008819b64 0000000000000000 >> [ 8.031403] 3ac0: 0000000000000001 0000000000000000 0000008080808080 fefefefeff6b646d >> [ 8.031404] 3ae0: 7f7f7f7f7f7f7f7f 0000000000000000 0101010101010101 0000000000000018 >> [ 8.031405] 3b00: 0000000000000018 0000000000000000 0000000000000000 ffff000000000000 >> [ 8.031406] 3b20: 0000000000087ffc 2fe48d76a78303f0 >> [ 8.031409] [<ffff000008899450>] pcc_mbox_request_channel+0x8c/0x160 >> [ 8.031410] [<ffff000008819dac>] xgene_slimpro_i2c_probe+0x1c0/0x378 >> [ 8.031413] [<ffff0000085e84dc>] platform_drv_probe+0x50/0xbc >> [ 8.031414] [<ffff0000085e68a4>] driver_probe_device+0x21c/0x2d0 >> [ 8.031416] [<ffff0000085e6a04>] __driver_attach+0xac/0xb0 >> [ 8.031417] [<ffff0000085e4a78>] bus_for_each_dev+0x58/0x98 >> [ 8.031418] [<ffff0000085e61e4>] driver_attach+0x20/0x28 >> [ 8.031419] [<ffff0000085e5e0c>] bus_add_driver+0x1c8/0x22c >> [ 8.031421] [<ffff0000085e7324>] driver_register+0x60/0xf4 >> [ 8.031422] [<ffff0000085e8420>] __platform_driver_register+0x4c/0x54 >> [ 8.031425] [<ffff000008e96dd0>] xgene_slimpro_i2c_driver_init+0x18/0x20 >> [ 8.031426] [<ffff000008083144>] do_one_initcall+0x38/0x124 >> [ 8.031429] [<ffff000008e50d0c>] kernel_init_freeable+0x190/0x22c >> [ 8.031431] [<ffff0000089eac30>] kernel_init+0x10/0xfc >> [ 8.031432] [<ffff000008082ec0>] ret_from_fork+0x10/0x50 >> [ 8.031434] Code: cb030e63 8b030013 b140067f 54fffda8 (f9400a61) >> [ 8.031448] ---[ end trace 14eb48a4e1e1f9fb ]--- >> >> Signed-off-by: Hoan Tran <hotran@apm.com> >> --- >> drivers/mailbox/pcc.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c >> index ac91fd0..cbca5e5 100644 >> --- a/drivers/mailbox/pcc.c >> +++ b/drivers/mailbox/pcc.c >> @@ -92,7 +92,7 @@ >> */ >> static struct mbox_chan *get_pcc_channel(int id) >> { >> - if (id < 0 || id > pcc_mbox_ctrl.num_chans) >> + if (id < 0 || id >= pcc_mbox_ctrl.num_chans) >> return ERR_PTR(-ENOENT); >> >> return &pcc_mbox_channels[id]; >> > Prashanth, Ashwin, comments? > Looks good. Acked-by: Prashanth Prakash <pprakash@codeaurora.org> -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Monday, July 24, 2017 06:30:46 PM Prakash, Prashanth wrote: > > On 7/24/2017 2:32 PM, Rafael J. Wysocki wrote: > > On Friday, July 21, 2017 03:09:29 PM Hoan Tran wrote: > >> When PCCT is not available, kernel crashes as below when requests PCC > >> channel 0. This patch fixes this issue. > >> > >> [ 0.920454] PCCT header not found. > >> ... > >> [ 8.031309] Unable to handle kernel NULL pointer dereference at virtual address 00000010 > >> [ 8.031310] [0000000000000010] user address but active_mm is swapper > >> [ 8.031312] Internal error: Oops: 96000004 [#1] PREEMPT SMP > >> [ 8.031313] Modules linked in: > >> [ 8.031316] CPU: 31 PID: 1 Comm: swapper/0 Tainted: G W 4.13.0-rc1 #18 > >> [ 8.031317] Hardware name: AppliedMicro(R) 07/20/2017 > >> [ 8.031318] task: ffff809ef3b08000 task.stack: ffff809ef3b10000 > >> [ 8.031322] PC is at pcc_mbox_request_channel+0x8c/0x160 > >> [ 8.031325] LR is at xgene_slimpro_i2c_probe+0x1c0/0x378 > >> [ 8.031326] pc : [<ffff000008899450>] lr : [<ffff000008819dac>] pstate: 00000045 > >> [ 8.031327] sp : ffff809ef3b13bd0 > >> [ 8.031327] x29: ffff809ef3b13bd0 x28: ffff000008ed90a0 > >> [ 8.031329] x27: ffff000009091000 x26: ffff000008e50470 > >> [ 8.031330] x25: ffff000008ed9100 x24: ffff809eefd9ac30 > >> [ 8.031332] x23: 0000000000000000 x22: ffff0000090e3e10 > >> [ 8.031333] x21: ffff0000090e3000 x20: 0000000000000000 > >> [ 8.031335] x19: 0000000000000000 x18: 0000000000087ffc > >> [ 8.031336] x17: 2fe48d76a78303f0 x16: 0000000000087ffc > >> [ 8.031337] x15: ffff000000000000 x14: 0000000000000000 > >> [ 8.031339] x13: 0000000000000000 x12: 0000000000000018 > >> [ 8.031340] x11: 0000000000000018 x10: 0101010101010101 > >> [ 8.031342] x9 : 0000000000000000 x8 : 7f7f7f7f7f7f7f7f > >> [ 8.031343] x7 : fefefefeff6b646d x6 : 0000008080808080 > >> [ 8.031345] x5 : 0000000000000000 x4 : 0000000000000001 > >> [ 8.031346] x3 : 0000000000000000 x2 : ffff000008819b64 > >> [ 8.031348] x1 : 0000000000000000 x0 : 0000000000000000 > >> ... > >> [ 8.031393] Call trace: > >> [ 8.031394] Exception stack(0xffff809ef3b13a00 to 0xffff809ef3b13b30) > >> [ 8.031395] 3a00: 0000000000000000 0001000000000000 ffff809ef3b13bd0 ffff000008899450 > >> [ 8.031397] 3a20: ffff809f7e1f9a10 ffff000008f60be0 0000000000000001 ffff809ef3b13b7c > >> [ 8.031398] 3a40: ffff809f7e1f9a10 0000000000000000 ffff000009091000 0000000000000003 > >> [ 8.031399] 3a60: ffff000009091000 0000000000000003 ffff809ef3b13a80 ffff0000084e0794 > >> [ 8.031400] 3a80: ffff809ef3b13a90 ffff00000850bb64 ffff809ef3b13ad0 ffff00000850bf34 > >> [ 8.031402] 3aa0: 0000000000000000 0000000000000000 ffff000008819b64 0000000000000000 > >> [ 8.031403] 3ac0: 0000000000000001 0000000000000000 0000008080808080 fefefefeff6b646d > >> [ 8.031404] 3ae0: 7f7f7f7f7f7f7f7f 0000000000000000 0101010101010101 0000000000000018 > >> [ 8.031405] 3b00: 0000000000000018 0000000000000000 0000000000000000 ffff000000000000 > >> [ 8.031406] 3b20: 0000000000087ffc 2fe48d76a78303f0 > >> [ 8.031409] [<ffff000008899450>] pcc_mbox_request_channel+0x8c/0x160 > >> [ 8.031410] [<ffff000008819dac>] xgene_slimpro_i2c_probe+0x1c0/0x378 > >> [ 8.031413] [<ffff0000085e84dc>] platform_drv_probe+0x50/0xbc > >> [ 8.031414] [<ffff0000085e68a4>] driver_probe_device+0x21c/0x2d0 > >> [ 8.031416] [<ffff0000085e6a04>] __driver_attach+0xac/0xb0 > >> [ 8.031417] [<ffff0000085e4a78>] bus_for_each_dev+0x58/0x98 > >> [ 8.031418] [<ffff0000085e61e4>] driver_attach+0x20/0x28 > >> [ 8.031419] [<ffff0000085e5e0c>] bus_add_driver+0x1c8/0x22c > >> [ 8.031421] [<ffff0000085e7324>] driver_register+0x60/0xf4 > >> [ 8.031422] [<ffff0000085e8420>] __platform_driver_register+0x4c/0x54 > >> [ 8.031425] [<ffff000008e96dd0>] xgene_slimpro_i2c_driver_init+0x18/0x20 > >> [ 8.031426] [<ffff000008083144>] do_one_initcall+0x38/0x124 > >> [ 8.031429] [<ffff000008e50d0c>] kernel_init_freeable+0x190/0x22c > >> [ 8.031431] [<ffff0000089eac30>] kernel_init+0x10/0xfc > >> [ 8.031432] [<ffff000008082ec0>] ret_from_fork+0x10/0x50 > >> [ 8.031434] Code: cb030e63 8b030013 b140067f 54fffda8 (f9400a61) > >> [ 8.031448] ---[ end trace 14eb48a4e1e1f9fb ]--- > >> > >> Signed-off-by: Hoan Tran <hotran@apm.com> > >> --- > >> drivers/mailbox/pcc.c | 2 +- > >> 1 file changed, 1 insertion(+), 1 deletion(-) > >> > >> diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c > >> index ac91fd0..cbca5e5 100644 > >> --- a/drivers/mailbox/pcc.c > >> +++ b/drivers/mailbox/pcc.c > >> @@ -92,7 +92,7 @@ > >> */ > >> static struct mbox_chan *get_pcc_channel(int id) > >> { > >> - if (id < 0 || id > pcc_mbox_ctrl.num_chans) > >> + if (id < 0 || id >= pcc_mbox_ctrl.num_chans) > >> return ERR_PTR(-ENOENT); > >> > >> return &pcc_mbox_channels[id]; > >> > > Prashanth, Ashwin, comments? > > > Looks good. > Acked-by: Prashanth Prakash <pprakash@codeaurora.org> OK, applied. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c index ac91fd0..cbca5e5 100644 --- a/drivers/mailbox/pcc.c +++ b/drivers/mailbox/pcc.c @@ -92,7 +92,7 @@ */ static struct mbox_chan *get_pcc_channel(int id) { - if (id < 0 || id > pcc_mbox_ctrl.num_chans) + if (id < 0 || id >= pcc_mbox_ctrl.num_chans) return ERR_PTR(-ENOENT); return &pcc_mbox_channels[id];
When PCCT is not available, kernel crashes as below when requests PCC channel 0. This patch fixes this issue. [ 0.920454] PCCT header not found. ... [ 8.031309] Unable to handle kernel NULL pointer dereference at virtual address 00000010 [ 8.031310] [0000000000000010] user address but active_mm is swapper [ 8.031312] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 8.031313] Modules linked in: [ 8.031316] CPU: 31 PID: 1 Comm: swapper/0 Tainted: G W 4.13.0-rc1 #18 [ 8.031317] Hardware name: AppliedMicro(R) 07/20/2017 [ 8.031318] task: ffff809ef3b08000 task.stack: ffff809ef3b10000 [ 8.031322] PC is at pcc_mbox_request_channel+0x8c/0x160 [ 8.031325] LR is at xgene_slimpro_i2c_probe+0x1c0/0x378 [ 8.031326] pc : [<ffff000008899450>] lr : [<ffff000008819dac>] pstate: 00000045 [ 8.031327] sp : ffff809ef3b13bd0 [ 8.031327] x29: ffff809ef3b13bd0 x28: ffff000008ed90a0 [ 8.031329] x27: ffff000009091000 x26: ffff000008e50470 [ 8.031330] x25: ffff000008ed9100 x24: ffff809eefd9ac30 [ 8.031332] x23: 0000000000000000 x22: ffff0000090e3e10 [ 8.031333] x21: ffff0000090e3000 x20: 0000000000000000 [ 8.031335] x19: 0000000000000000 x18: 0000000000087ffc [ 8.031336] x17: 2fe48d76a78303f0 x16: 0000000000087ffc [ 8.031337] x15: ffff000000000000 x14: 0000000000000000 [ 8.031339] x13: 0000000000000000 x12: 0000000000000018 [ 8.031340] x11: 0000000000000018 x10: 0101010101010101 [ 8.031342] x9 : 0000000000000000 x8 : 7f7f7f7f7f7f7f7f [ 8.031343] x7 : fefefefeff6b646d x6 : 0000008080808080 [ 8.031345] x5 : 0000000000000000 x4 : 0000000000000001 [ 8.031346] x3 : 0000000000000000 x2 : ffff000008819b64 [ 8.031348] x1 : 0000000000000000 x0 : 0000000000000000 ... [ 8.031393] Call trace: [ 8.031394] Exception stack(0xffff809ef3b13a00 to 0xffff809ef3b13b30) [ 8.031395] 3a00: 0000000000000000 0001000000000000 ffff809ef3b13bd0 ffff000008899450 [ 8.031397] 3a20: ffff809f7e1f9a10 ffff000008f60be0 0000000000000001 ffff809ef3b13b7c [ 8.031398] 3a40: ffff809f7e1f9a10 0000000000000000 ffff000009091000 0000000000000003 [ 8.031399] 3a60: ffff000009091000 0000000000000003 ffff809ef3b13a80 ffff0000084e0794 [ 8.031400] 3a80: ffff809ef3b13a90 ffff00000850bb64 ffff809ef3b13ad0 ffff00000850bf34 [ 8.031402] 3aa0: 0000000000000000 0000000000000000 ffff000008819b64 0000000000000000 [ 8.031403] 3ac0: 0000000000000001 0000000000000000 0000008080808080 fefefefeff6b646d [ 8.031404] 3ae0: 7f7f7f7f7f7f7f7f 0000000000000000 0101010101010101 0000000000000018 [ 8.031405] 3b00: 0000000000000018 0000000000000000 0000000000000000 ffff000000000000 [ 8.031406] 3b20: 0000000000087ffc 2fe48d76a78303f0 [ 8.031409] [<ffff000008899450>] pcc_mbox_request_channel+0x8c/0x160 [ 8.031410] [<ffff000008819dac>] xgene_slimpro_i2c_probe+0x1c0/0x378 [ 8.031413] [<ffff0000085e84dc>] platform_drv_probe+0x50/0xbc [ 8.031414] [<ffff0000085e68a4>] driver_probe_device+0x21c/0x2d0 [ 8.031416] [<ffff0000085e6a04>] __driver_attach+0xac/0xb0 [ 8.031417] [<ffff0000085e4a78>] bus_for_each_dev+0x58/0x98 [ 8.031418] [<ffff0000085e61e4>] driver_attach+0x20/0x28 [ 8.031419] [<ffff0000085e5e0c>] bus_add_driver+0x1c8/0x22c [ 8.031421] [<ffff0000085e7324>] driver_register+0x60/0xf4 [ 8.031422] [<ffff0000085e8420>] __platform_driver_register+0x4c/0x54 [ 8.031425] [<ffff000008e96dd0>] xgene_slimpro_i2c_driver_init+0x18/0x20 [ 8.031426] [<ffff000008083144>] do_one_initcall+0x38/0x124 [ 8.031429] [<ffff000008e50d0c>] kernel_init_freeable+0x190/0x22c [ 8.031431] [<ffff0000089eac30>] kernel_init+0x10/0xfc [ 8.031432] [<ffff000008082ec0>] ret_from_fork+0x10/0x50 [ 8.031434] Code: cb030e63 8b030013 b140067f 54fffda8 (f9400a61) [ 8.031448] ---[ end trace 14eb48a4e1e1f9fb ]--- Signed-off-by: Hoan Tran <hotran@apm.com> --- drivers/mailbox/pcc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)