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46c87852e9
linux/arch/arm/mm
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Prathyush K 46c87852e9 ARM: dma-mapping: modify condition check while freeing pages 
WARNING: at mm/vmalloc.c:1471 __iommu_free_buffer+0xcc/0xd0()
Trying to vfree() nonexistent vm area (ef095000)
Modules linked in:
[<c0015a18>] (unwind_backtrace+0x0/0xfc) from [<c0025a94>] (warn_slowpath_common+0x54/0x64)
[<c0025a94>] (warn_slowpath_common+0x54/0x64) from [<c0025b38>] (warn_slowpath_fmt+0x30/0x40)
[<c0025b38>] (warn_slowpath_fmt+0x30/0x40) from [<c0016de0>] (__iommu_free_buffer+0xcc/0xd0)
[<c0016de0>] (__iommu_free_buffer+0xcc/0xd0) from [<c0229a5c>] (exynos_drm_free_buf+0xe4/0x138)
[<c0229a5c>] (exynos_drm_free_buf+0xe4/0x138) from [<c022b358>] (exynos_drm_gem_destroy+0x80/0xfc)
[<c022b358>] (exynos_drm_gem_destroy+0x80/0xfc) from [<c0211230>] (drm_gem_object_free+0x28/0x34)
[<c0211230>] (drm_gem_object_free+0x28/0x34) from [<c0211bd0>] (drm_gem_object_release_handle+0xcc/0xd8)
[<c0211bd0>] (drm_gem_object_release_handle+0xcc/0xd8) from [<c01abe10>] (idr_for_each+0x74/0xb8)
[<c01abe10>] (idr_for_each+0x74/0xb8) from [<c02114e4>] (drm_gem_release+0x1c/0x30)
[<c02114e4>] (drm_gem_release+0x1c/0x30) from [<c0210ae8>] (drm_release+0x608/0x694)
[<c0210ae8>] (drm_release+0x608/0x694) from [<c00b75a0>] (fput+0xb8/0x228)
[<c00b75a0>] (fput+0xb8/0x228) from [<c00b40c4>] (filp_close+0x64/0x84)
[<c00b40c4>] (filp_close+0x64/0x84) from [<c0029d54>] (put_files_struct+0xe8/0x104)
[<c0029d54>] (put_files_struct+0xe8/0x104) from [<c002b930>] (do_exit+0x608/0x774)
[<c002b930>] (do_exit+0x608/0x774) from [<c002bae4>] (do_group_exit+0x48/0xb4)
[<c002bae4>] (do_group_exit+0x48/0xb4) from [<c002bb60>] (sys_exit_group+0x10/0x18)
[<c002bb60>] (sys_exit_group+0x10/0x18) from [<c000ee80>] (ret_fast_syscall+0x0/0x30)

This patch modifies the condition while freeing to match the condition
used while allocation. This fixes the above warning which arises when
array size is equal to PAGE_SIZE where allocation is done using kzalloc
but free is done using vfree.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2012-07-16 08:59:55 +02:00
..
abort-ev4.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev4t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5tj.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev6.S ARM: 7396/1: errata: only handle ARM erratum #326103 on affected cores 2012-04-23 14:21:52 +01:00
abort-ev7.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-lv4t.S ARM: entry: data abort: ensure r5 is preserved by abort functions 2011-07-02 10:56:12 +01:00
abort-macro.S ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort 2011-09-10 23:39:56 +01:00
abort-nommu.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
alignment.c Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
cache-fa.S ARM: mm: cache-fa: Use the new processor struct macros 2011-07-07 15:31:05 +01:00
cache-feroceon-l2.c ARM: move CP15 definitions to separate header file 2012-03-28 18:30:01 +01:00
cache-l2x0.c ARM: 7398/1: l2x0: only write to debug registers on PL310 2012-04-23 14:21:52 +01:00
cache-tauros2.c ARM: cache: tauros2: add disable and resume callback 2012-05-07 11:43:48 +08:00
cache-v3.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
cache-v4.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
cache-v4wb.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
cache-v4wt.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
cache-v6.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
cache-v7.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
cache-xsc3l2.c ARM: move CP15 definitions to separate header file 2012-03-28 18:30:01 +01:00
context.c ARM: Remove current_mm per-cpu variable 2012-04-17 15:29:37 +01:00
copypage-fa.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-feroceon.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-v4mc.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
copypage-v4wb.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-v4wt.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-v6.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
copypage-xsc3.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-xscale.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
dma-mapping.c ARM: dma-mapping: modify condition check while freeing pages 2012-07-16 08:59:55 +02:00
extable.c [ARM] Convert asm/uaccess.h to linux/uaccess.h 2008-09-06 11:35:55 +01:00
fault-armv.c arm: remove several unnecessary module.h include instances 2011-10-31 19:30:48 -04:00
fault.c Merge branch 'v3-removal' into for-linus 2012-05-21 15:15:33 +01:00
fault.h ARM: LPAE: Add fault handling support 2011-12-08 10:30:40 +00:00
flush.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
fsr-2level.c ARM: LPAE: Move the FSR definitions to separate files 2011-12-08 10:30:37 +00:00
fsr-3level.c ARM: LPAE: Add fault handling support 2011-12-08 10:30:40 +00:00
highmem.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
idmap.c Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
init.c ARM: mm: fix type of the arm_dma_limit global variable 2012-06-11 14:30:47 +02:00
iomap.c arm/PCI: remove arch pci_flags definition 2012-02-23 20:18:56 -07:00
ioremap.c ARM: cleanups of io includes 2012-03-29 18:02:10 -07:00
Kconfig ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs 2012-05-05 05:50:50 +01:00
Makefile ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs 2012-05-05 05:50:50 +01:00
mm.h ARM: mm: fix type of the arm_dma_limit global variable 2012-06-11 14:30:47 +02:00
mmap.c ARM: 7169/1: topdown mmap support 2011-12-06 11:15:25 +00:00
mmu.c ARM: integrate CMA with DMA-mapping subsystem 2012-05-21 15:09:38 +02:00
nommu.c ARM: 7383/1: nommu: populate vectors page from paging_init 2012-04-13 14:05:42 +01:00
pabort-legacy.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v6.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v7.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pgd.c ARM: move CP15 definitions to separate header file 2012-03-28 18:30:01 +01:00
proc-arm7tdmi.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm9tdmi.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm720.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm740.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm920.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm922.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm925.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm926.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm940.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm946.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm1020.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm1020e.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm1022.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-arm1026.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-fa526.S Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
proc-feroceon.S ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails 2012-05-02 11:12:49 +01:00
proc-macros.S ARM: LPAE: MMU setup for the 3-level page table format 2011-12-08 10:30:39 +00:00
proc-mohawk.S arm-soc: power management changes 2012-05-22 09:41:01 -07:00
proc-sa110.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-sa1100.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-syms.c ARM: add size argument to __cpuc_flush_dcache_page 2009-12-14 14:53:22 +00:00
proc-v6.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-v7-2level.S ARM: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW on ASID-capable CPUs 2012-04-17 15:29:32 +01:00
proc-v7-3level.S ARM: LPAE: MMU setup for the 3-level page table format 2011-12-08 10:30:39 +00:00
proc-v7.S ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE 2012-04-15 22:00:31 +01:00
proc-xsc3.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-xscale.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
tlb-fa.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v4.S ARM: mm: tlb-v4: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wb.S ARM: mm: tlb-v4wb: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wbi.S ARM: mm: tlb-v4wbi: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v6.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v7.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
vmregion.c ARM: add dma coherent region reporting via procfs 2012-01-23 10:23:57 +00:00
vmregion.h ARM: dma-mapping: add support for IOMMU mapper 2012-05-21 15:06:23 +02:00