Anton Blanchard cd32e2dcc9 powerpc: Fix bad NULL pointer check in udbg_uart_getc_poll() ...

We have some code in udbg_uart_getc_poll() that tries to protect
against a NULL udbg_uart_in, but gets it all wrong.

Found with the LLVM static analyzer (scan-build).

Fixes: 309257484c ("powerpc: Cleanup udbg_16550 and add support for LPC PIO-only UARTs")
Signed-off-by: Anton Blanchard <anton@samba.org>
[mpe: Add some newlines for readability while we're here]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2014-11-12 13:47:20 +11:00

..

vdso32

powerpc/booke64: Use SPRG7 for VDSO

2014-03-19 19:57:14 -05:00

vdso64

powerpc/booke64: Use SPRG7 for VDSO

2014-03-19 19:57:14 -05:00

.gitignore

…

align.c

powerpc: Remove double braces in alignment code.

2014-11-10 09:59:32 +11:00

asm-offsets.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2014-08-07 11:35:30 -07:00

audit.c

…

btext.c

powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32

2013-08-27 16:01:23 +10:00

cacheinfo.c

powerpc/pseries: Update dynamic cache nodes for suspend/resume operation

2014-03-07 15:54:49 +11:00

cacheinfo.h

…

compat_audit.c

…

cpu_setup_6xx.S

…

cpu_setup_44x.S

…

cpu_setup_fsl_booke.S

powerpc/booke: Restrict SPE exception handlers to e200/e500 cores

2014-09-22 10:11:31 +02:00

cpu_setup_pa6t.S

…

cpu_setup_power.S

powerpc/powernv: Enable POWER8 doorbell IPIs

2014-06-11 17:05:12 +10:00

cpu_setup_ppc970.S

…

cputable.c

powerpc/booke: Restrict SPE exception handlers to e200/e500 cores

2014-09-22 10:11:31 +02:00

crash_dump.c

powerpc: Remove superfluous bootmem includes

2014-11-10 09:59:26 +11:00

crash.c

arch,powerpc: Convert smp_mb__*()

2014-04-18 14:20:41 +02:00

dbell.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

dma-iommu.c

powerpc/iommu: Update the generic code to use dynamic iommu page sizes

2013-12-30 14:17:19 +11:00

dma-swiotlb.c

powerpc/64: Limit ZONE_DMA32 to 4GiB in swiotlb_detect_4g()

2014-09-03 17:58:22 -05:00

dma.c

powerpc: Only do dynamic DMA zone limits on platforms that need it

2014-10-17 09:21:44 +11:00

eeh_cache.c

powerpc/eeh: Replace pr_warning() with pr_warn()

2014-08-05 15:41:34 +10:00

eeh_dev.c

powerpc/eeh: Replace pr_warning() with pr_warn()

2014-08-05 15:41:34 +10:00

eeh_driver.c

powerpc/eeh: Rename flag EEH_PE_RESET to EEH_PE_CFG_BLOCKED

2014-10-15 11:27:18 +11:00

eeh_event.c

powerpc/powernv: Fix killed EEH event

2014-06-11 17:04:33 +10:00

eeh_pe.c

powerpc/eeh: Block PCI config access upon frozen PE

2014-10-15 11:27:20 +11:00

eeh_sysfs.c

powerpc/eeh: Show hex prefix for PE state sysfs

2014-10-01 22:23:34 +10:00

eeh.c

powerpc/eeh: Don't collect logs on PE with blocked config space

2014-10-15 11:27:21 +11:00

entry_32.S

powerpc/ftrace: Fix obsolete comment

2014-11-10 09:59:29 +11:00

entry_64.S

powerpc/ftrace: simplify prepare_ftrace_return

2014-11-10 09:59:28 +11:00

epapr_hcalls.S

powerpc: Add paravirt idle loop for 64-bit Book-E

2013-03-13 14:19:36 -05:00

epapr_paravirt.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2014-06-10 18:54:22 -07:00

exceptions-64e.S

powerpc/booke: Revert SPE/AltiVec common defines for interrupt numbers

2014-09-22 10:11:31 +02:00

exceptions-64s.S

powerpc/book3s: Don't clear MSR_RI in hmi handler.

2014-10-10 17:25:25 +11:00

fadump.c

powerpc/fadump: Fix endianess issues in firmware assisted dump handling

2014-10-30 16:52:46 +11:00

firmware.c

…

fpu.S

powerpc: Don't corrupt transactional state when using FP/VMX in kernel

2014-01-15 13:59:11 +11:00

fsl_booke_entry_mapping.S

powerpc: enable the relocatable support for the fsl booke 32bit kernel

2014-01-09 17:52:16 -06:00

ftrace.c

powerpc/ftrace: simplify prepare_ftrace_return

2014-11-10 09:59:28 +11:00

head_8xx.S

powerpc/8xx: Duplicate two insns instead of branching

2014-09-04 19:28:56 -05:00

head_32.S

…

head_40x.S

powerpc: Remove check for CONFIG_SERIAL_TEXT_DEBUG

2014-06-11 16:31:21 +10:00

head_44x.S

powerpc/ppc476: Disable BTAC

2014-08-13 15:13:42 +10:00

head_64.S

Merge remote-tracking branch 'scott/next' into next

2014-08-05 14:13:41 +10:00

head_booke.h

powerpc: Fix interrupt range check on debug exception

2013-05-02 10:31:01 +10:00

head_fsl_booke.S

powerpc/booke: Revert SPE/AltiVec common defines for interrupt numbers

2014-09-22 10:11:31 +02:00

hw_breakpoint.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

ibmebus.c

powerpc: make of_device_ids const

2014-09-25 23:14:46 +10:00

idle_6xx.S

powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly

2012-07-11 14:18:22 +10:00

idle_book3e.S

powerpc: No need to use dot symbols when branching to a function

2014-04-23 10:05:16 +10:00

idle_e500.S

powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly

2012-07-11 14:18:22 +10:00

idle_power4.S

powerpc: No need to use dot symbols when branching to a function

2014-04-23 10:05:16 +10:00

idle_power7.S

powerpc/powernv: Don't call generic code on offline cpus

2014-09-25 23:14:50 +10:00

idle.c

powerpc/idle: Convert use of typedef ctl_table to struct ctl_table

2013-07-01 11:10:35 +10:00

io-workarounds.c

powerpc: Better split CONFIG_PPC_INDIRECT_PIO and CONFIG_PPC_INDIRECT_MMIO

2013-08-14 14:57:50 +10:00

io.c

powerpc/powernv: Add PIO accessors for Power8 LPC bus

2013-08-14 14:58:08 +10:00

iomap.c

powerpc/kerenl: Enable EEH for IO accessors

2014-06-24 12:43:13 +10:00

iommu.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

irq.c

powerpc: Remove superfluous bootmem includes

2014-11-10 09:59:26 +11:00

isa-bridge.c

POWERPC: drivers: remove __dev* attributes.

2013-01-03 15:57:04 -08:00

jump_label.c

…

kgdb.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

kprobes.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

kvm_emul.S

KVM: PPC: Not optimizing MSR_CE and MSR_ME with paravirt.

2012-05-30 11:43:11 +02:00

kvm.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm into next

2014-06-04 08:47:12 -07:00

l2cr_6xx.S

…

legacy_serial.c

powerpc: make of_device_ids const

2014-09-25 23:14:46 +10:00

machine_kexec_32.c

…

machine_kexec_64.c

powerpc, kexec: Fix "Processor X is stuck" issue during kexec from ST mode

2014-05-28 13:24:26 +10:00

machine_kexec.c

powerpc: Fix endian issues in kexec and crash dump code

2014-02-11 11:24:52 +11:00

Makefile

powerpc: Separate ppc32 symbol exports into ppc_ksyms_32.c

2014-09-25 23:14:40 +10:00

mce_power.c

powerpc/book3s: Recover from MC in sapphire on SCOM read via MMIO.

2014-03-07 15:52:10 +11:00

mce.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

misc_32.S

powerpc: Set the correct ksp_limit on ppc32 when switching to irq stack

2014-02-17 11:19:34 +11:00

misc_64.S

powerpc: module: handle MODVERSION for .TOC.

2014-04-23 10:05:28 +10:00

misc.S

powerpc: Rename __get_SP() to current_stack_pointer()

2014-10-15 11:23:20 +11:00

module_32.c

powerpc: Use pr_fmt in module loader code

2014-10-02 17:33:54 +10:00

module_64.c

powerpc: Use pr_fmt in module loader code

2014-10-02 17:33:54 +10:00

module.c

powerpc: Move local setup.h declarations to arch includes

2013-10-30 16:00:31 +11:00

msi.c

PCI/MSI/PPC: Remove arch_msi_check_device()

2014-10-01 12:21:14 -06:00

nvram_64.c

powerpc: Make a bunch of things static

2014-09-25 23:14:41 +10:00

of_platform.c

powerpc: make of_device_ids const

2014-09-25 23:14:46 +10:00

paca.c

KVM: PPC: Book3S PR: Rework SLB switching code

2014-05-30 14:26:30 +02:00

pci_32.c

powerpc/pci: Support per-aperture memory offset

2013-05-06 13:40:40 +10:00

pci_64.c

powerpc: Remove superfluous bootmem includes

2014-11-10 09:59:26 +11:00

pci_dn.c

powerpc: Make PCI device node device tree accesses endian safe

2013-08-14 15:33:31 +10:00

pci_of_scan.c

powerpc: Make a bunch of things static

2014-09-25 23:14:41 +10:00

pci-common.c

powerpc/pci: Quieten unset I/O resource warning

2014-11-05 21:00:46 +11:00

pci-hotplug.c

powerpc/PCI: Use pci_is_bridge() to simplify code

2014-05-27 14:57:36 -06:00

pmc.c

…

ppc32.h

powerpc: switch to generic old sigaction()

2013-02-03 18:16:10 -05:00

ppc_ksyms_32.c

powerpc: Separate ppc32 symbol exports into ppc_ksyms_32.c

2014-09-25 23:14:40 +10:00

ppc_ksyms.c

powerpc: Rename __get_SP() to current_stack_pointer()

2014-10-15 11:23:20 +11:00

ppc_save_regs.S

…

proc_powerpc.c

proc_powerpc: switch to fixed_size_llseek()

2013-06-29 12:57:50 +04:00

process.c

powerpc/ftrace: Remove mod_return_to_handler

2014-11-10 09:59:27 +11:00

prom_init_check.sh

powerpc: Simplify symbol check in prom_init_check.sh

2014-09-25 23:14:46 +10:00

prom_init.c

powerpc/powernv: Remove OPAL v1 takeover

2014-06-25 13:10:47 +10:00

prom_parse.c

powerpc: of_parse_dma_window should take a __be32 *dma_window

2013-08-14 15:33:26 +10:00

prom.c

powerpc: Remove some old bootmem related comments

2014-11-10 09:59:25 +11:00

ptrace32.c

powerpc: move debug registers in a structure

2013-10-18 18:44:49 -05:00

ptrace.c

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

reloc_32.S

powerpc: Don't flush/invalidate the d/icache for an unknown relocation type

2013-07-01 11:10:34 +10:00

reloc_64.S

powerpc: Align p_dyn, p_rela and p_st symbols

2014-03-07 13:50:19 +11:00

rtas_flash.c

powerpc: Fix endianness of flash_block_list in rtas_flash

2014-07-28 11:30:54 +10:00

rtas_pci.c

powerpc: Remove superfluous bootmem includes

2014-11-10 09:59:26 +11:00

rtas-proc.c

powerpc: LLVM complains about forward declaration of struct rtas_sensors

2014-11-10 09:59:32 +11:00

rtas-rtc.c

…

rtas.c

powerpc: Remove some old bootmem related comments

2014-11-10 09:59:25 +11:00

rtasd.c

powerpc: Make a bunch of things static

2014-09-25 23:14:41 +10:00

setup_32.c

powerpc: Remove unused vgacon_remap_base & fix build break

2014-11-10 09:59:31 +11:00

setup_64.c

powerpc: Move sparse_init() into initmem_init

2014-11-10 09:59:26 +11:00

setup-common.c

powerpc: Convert power off logic to pm_power_off

2014-11-03 12:12:51 +11:00

signal_32.c

powerpc: Use sigsp()

2014-08-06 13:04:32 +02:00

signal_64.c

powerpc: Use sigsp()

2014-08-06 13:04:32 +02:00

signal.c

powerpc: Use sigsp()

2014-08-06 13:04:32 +02:00

signal.h

powerpc: Use get_signal() signal_setup_done()

2014-08-06 13:03:09 +02:00

smp-tbsync.c

powerpc: Delete non-required instances of include <linux/init.h>

2014-01-15 13:46:44 +11:00

smp.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

stacktrace.c

powerpc: Rename __get_SP() to current_stack_pointer()

2014-10-15 11:23:20 +11:00

suspend.c

nosave: consolidate __nosave_{begin,end} in <asm/sections.h>

2014-10-09 22:26:04 -04:00

swsusp_32.S

…

swsusp_64.c

…

swsusp_asm64.S

powerpc: Only save/restore SDR1 if in hypervisor mode

2013-10-31 12:37:29 +11:00

swsusp_booke.S

powerpc/fsl-booke: Use SPRN_SPRGn rather than mfsprg/mtsprg

2014-01-07 19:06:03 -06:00

swsusp.c

…

sys_ppc32.c

unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE

2013-05-09 13:46:38 -04:00

syscalls.c

powerpc: Delete non-required instances of include <linux/init.h>

2014-01-15 13:46:44 +11:00

sysfs.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

systbl_chk.c

…

systbl_chk.sh

…

systbl.S

powerpc: Use standard macros for sys_sigpending() & sys_old_getrlimit()

2014-07-28 14:09:23 +10:00

tau_6xx.c

…

time.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

tm.S

powerpc: Fix regression of per-CPU DSCR setting

2014-05-28 13:35:40 +10:00

traps.c

powerpc: Replace __get_cpu_var uses

2014-11-03 12:12:32 +11:00

udbg_16550.c

powerpc: Fix bad NULL pointer check in udbg_uart_getc_poll()

2014-11-12 13:47:20 +11:00

udbg.c

powerpc: Remove platforms/wsp and associated pieces

2014-06-11 16:35:38 +10:00

uprobes.c

uprobes/powerpc: Kill arch_uprobe->ainsn

2013-11-20 16:31:01 +01:00

vdso.c

powerpc: Remove superfluous bootmem includes

2014-11-10 09:59:26 +11:00

vecemu.c

powerpc: Put FP/VSX and VR state into structures

2013-10-11 17:26:49 +11:00

vector.S

powerpc: Don't corrupt transactional state when using FP/VMX in kernel

2014-01-15 13:59:11 +11:00

vio.c

arch/powerpc: replace obsolete strict_strto* calls

2014-08-08 15:57:28 -07:00

vmlinux.lds.S

powerpc/modules: Module CRC relocation fix causes perf issues

2013-07-24 14:18:43 +10:00