linux-toradex.git, branch v3.19.3

Linux 3.19.3

2015-03-26T13:00:21+00:00

drm/i915: use in_interrupt() not in_irq() to check context

2015-03-26T12:59:51+00:00

commit 6c51d46f135b00c00373fcd029786ccef2b02b5b upstream.

The kernel in_irq() function tests for hard-IRQ context only, so if a
system is run with the kernel 'threadirqs' option selected, the test in
intel_check_page_flip() generates lots of warnings, because then it gets
called in soft-IRQ context.

We can instead use in_interrupt() which allows for either type of
interrupt, while still detecting and complaining about misuse of the
page flip code if it is ever called from non-interrupt context.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89321
Signed-off-by: Dave Gordon 
Reviewed-by: Daniel Vetter 
Signed-off-by: Jani Nikula 
Cc: Josh Boyer 
Signed-off-by: Greg Kroah-Hartman

target/pscsi: Fix NULL pointer dereference in get_device_type

2015-03-26T12:59:51+00:00

commit 215a8fe4198f607f34ecdbc9969dae783d8b5a61 upstream.

This patch fixes a NULL pointer dereference OOPs with pSCSI backends
within target_core_stat.c code.  The bug is caused by a configfs attr
read if no pscsi_dev_virt->pdv_sd has been configured.

Reported-by: Olaf Hering 
Signed-off-by: Nicholas Bellinger 
Signed-off-by: Greg Kroah-Hartman

iscsi-target: Avoid early conn_logout_comp for iser connections

2015-03-26T12:59:50+00:00

commit f068fbc82e7696d67b1bb8189306865bedf368b6 upstream.

This patch fixes a iser specific logout bug where early complete()
of conn->conn_logout_comp in iscsit_close_connection() was causing
isert_wait4logout() to complete too soon, triggering a use after
free NULL pointer dereference of iscsi_conn memory.

The complete() was originally added for traditional iscsi-target
when a ISCSI_LOGOUT_OP failed in iscsi_target_rx_opcode(), but given
iser-target does not wait in logout failure, this special case needs
to be avoided.

Reported-by: Sagi Grimberg 
Cc: Sagi Grimberg 
Cc: Slava Shwartsman 
Signed-off-by: Nicholas Bellinger 
Signed-off-by: Greg Kroah-Hartman

target: Fix virtual LUN=0 target_configure_device failure OOPs

2015-03-26T12:59:50+00:00

commit 5f7da044f8bc1cfb21c962edf34bd5699a76e7ae upstream.

This patch fixes a NULL pointer dereference triggered by a late
target_configure_device() -> alloc_workqueue() failure that results
in target_free_device() being called with DF_CONFIGURED already set,
which subsequently OOPses in destroy_workqueue() code.

Currently this only happens at modprobe target_core_mod time when
core_dev_setup_virtual_lun0() -> target_configure_device() fails,
and the explicit target_free_device() gets called.

To address this bug originally introduced by commit 0fd97ccf45, go
ahead and move DF_CONFIGURED to end of target_configure_device()
code to handle this special failure case.

Reported-by: Claudio Fleiner 
Cc: Claudio Fleiner 
Cc: Christoph Hellwig 
Signed-off-by: Nicholas Bellinger 
Signed-off-by: Greg Kroah-Hartman

target: Fix reference leak in target_get_sess_cmd() error path

2015-03-26T12:59:50+00:00

commit 7544e597343e2166daba3f32e4708533aa53c233 upstream.

This patch fixes a se_cmd->cmd_kref leak buf when se_sess->sess_tearing_down
is true within target_get_sess_cmd() submission path code.

This se_cmd reference leak can occur during active session shutdown when
ack_kref=1 is passed by target_submit_cmd_[map_sgls,tmr]() callers.

Signed-off-by: Bart Van Assche 
Signed-off-by: Nicholas Bellinger 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: am43xx-clocks: Fix ehrpwm tbclk data on am43xx

2015-03-26T12:59:50+00:00

commit 7d53d25578486d65bd7cd242bc7816b40e55e62b upstream.

ehrpwm tbclk is wrongly modelled as deriving from dpll_per_m2_ck.
The TRM says tbclk is derived from SYSCLKOUT. SYSCLKOUT nothing but the
functional clock of pwmss (l4ls_gclk).
Fix this by changing source of ehrpwmx_tbclk to l4ls_gclk.

Fixes: 4da1c67719f61 ("add tbclk data for ehrpwm")
Signed-off-by: Vignesh R 
Acked-by: Tero Kristo 
Signed-off-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: am33xx-clocks: Fix ehrpwm tbclk data on am33xx

2015-03-26T12:59:50+00:00

commit 6e22616eba7e25fac5aa6cb6563471afa1815ec2 upstream.

ehrpwm tbclk is wrongly modelled as deriving from dpll_per_m2_ck.
The TRM says tbclk is derived from SYSCLKOUT. SYSCLKOUT nothing but the
functional clock of pwmss (l4ls_gclk).
Fix this by changing source of ehrpwmx_tbclk to l4ls_gclk.

Fixes: 9e100ebafb91: ("Fix ehrpwm tbclk data")
Signed-off-by: Vignesh R 
Acked-by: Tero Kristo 
Signed-off-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: DRA7x: Fix the bypass clock source for dpll_iva and others

2015-03-26T12:59:50+00:00

commit d2192ea09858a8535b056fcede1a41d824e0b3d8 upstream.

Fixes: ee6c750761 (ARM: dts: dra7 clock data)

On DRA7x, For DPLL_IVA, the ref clock(CLKINP) is connected to sys_clk1 and
the bypass input(CLKINPULOW) is connected to iva_dpll_hs_clk_div clock.
But the bypass input is not directly routed to bypass clkout instead
both CLKINP and CLKINPULOW are connected to bypass clkout via a mux.

This mux is controlled by the bit - CM_CLKSEL_DPLL_IVA[23]:DPLL_BYP_CLKSEL
and it's POR value is zero which selects the CLKINP as bypass clkout.
which means iva_dpll_hs_clk_div is not the bypass clock for dpll_iva_ck

Fix this by adding another mux clock as parent in bypass mode.

This design is common to most of the PLLs and the rest have only one bypass
clock. Below is a list of the DPLLs that need this fix:

DPLL_IVA, DPLL_DDR,
DPLL_DSP, DPLL_EVE,
DPLL_GMAC, DPLL_PER,
DPLL_USB and DPLL_CORE

Signed-off-by: Ravikumar Kattekola 
Acked-by: Tero Kristo 
Signed-off-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

ARM: at91: pm: fix at91rm9200 standby

2015-03-26T12:59:50+00:00

commit 84e871660bebfddb9a62ebd6f19d02536e782f0a upstream.

at91rm9200 standby and suspend to ram has been broken since
00482a4078f4. It is wrongly using AT91_BASE_SYS which is a physical address
and actually doesn't correspond to any register on at91rm9200.

Use the correct at91_ramc_base[0] instead.

Fixes: 00482a4078f4 (ARM: at91: implement the standby function for pm/cpuidle)

Signed-off-by: Alexandre Belloni 
Signed-off-by: Nicolas Ferre 
Signed-off-by: Greg Kroah-Hartman