Make the memblock_phys_alloc() function an inline wrapper for memblock_phys_alloc_range() and update the memblock_phys_alloc() callers to check the returned value and panic in case of error. Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> --- arch/arm/mm/init.c | 4 ++++ arch/arm64/mm/mmu.c | 2 ++ arch/powerpc/sysdev/dart_iommu.c | 3 +++ arch/s390/kernel/crash_dump.c | 3 +++ arch/s390/kernel/setup.c | 3 +++ arch/sh/boards/mach-ap325rxa/setup.c | 3 +++ arch/sh/boards/mach-ecovec24/setup.c | 6 ++++++ arch/sh/boards/mach-kfr2r09/setup.c | 3 +++ arch/sh/boards/mach-migor/setup.c | 3 +++ arch/sh/boards/mach-se/7724/setup.c | 6 ++++++ arch/xtensa/mm/kasan_init.c | 3 +++ include/linux/memblock.h | 7 ++++++- mm/memblock.c | 5 ----- 13 files changed, 45 insertions(+), 6 deletions(-) diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index b76b90e..15dddfe 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -206,6 +206,10 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align) BUG_ON(!arm_memblock_steal_permitted); phys = memblock_phys_alloc(size, align); + if (!phys) + panic("Failed to steal %pa bytes at %pS\n", + &size, (void *)_RET_IP_); + memblock_free(phys, size); memblock_remove(phys, size); diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index b6f5aa5..a74e4be 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -104,6 +104,8 @@ static phys_addr_t __init early_pgtable_alloc(void) void *ptr; phys = memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE); + if (!phys) + panic("Failed to allocate page table page\n"); /* * The FIX_{PGD,PUD,PMD} slots may be in active use, but the FIX_PTE diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index 25bc25f..b82c9ff 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -265,6 +265,9 @@ static void allocate_dart(void) * prefetching into invalid pages and corrupting data */ tmp = memblock_phys_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE); + if (!tmp) + panic("DART: table allocation failed\n"); + dart_emptyval = DARTMAP_VALID | ((tmp >> DART_PAGE_SHIFT) & DARTMAP_RPNMASK); diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c index 97eae38..f96a585 100644 --- a/arch/s390/kernel/crash_dump.c +++ b/arch/s390/kernel/crash_dump.c @@ -61,6 +61,9 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu) struct save_area *sa; sa = (void *) memblock_phys_alloc(sizeof(*sa), 8); + if (!sa) + panic("Failed to allocate save area\n"); + if (is_boot_cpu) list_add(&sa->list, &dump_save_areas); else diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 72dd23e..da48397 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -968,6 +968,9 @@ static void __init setup_randomness(void) vmms = (struct sysinfo_3_2_2 *) memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE); + if (!vmms) + panic("Failed to allocate memory for sysinfo structure\n"); + if (stsi(vmms, 3, 2, 2) == 0 && vmms->count) add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count); memblock_free((unsigned long) vmms, PAGE_SIZE); diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c index d7ceab6..08a0cc9 100644 --- a/arch/sh/boards/mach-ap325rxa/setup.c +++ b/arch/sh/boards/mach-ap325rxa/setup.c @@ -558,6 +558,9 @@ static void __init ap325rxa_mv_mem_reserve(void) phys_addr_t size = CEU_BUFFER_MEMORY_SIZE; phys = memblock_phys_alloc(size, PAGE_SIZE); + if (!phys) + panic("Failed to allocate CEU memory\n"); + memblock_free(phys, size); memblock_remove(phys, size); diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c index a3901806..fd264a6 100644 --- a/arch/sh/boards/mach-ecovec24/setup.c +++ b/arch/sh/boards/mach-ecovec24/setup.c @@ -1481,11 +1481,17 @@ static void __init ecovec_mv_mem_reserve(void) phys_addr_t size = CEU_BUFFER_MEMORY_SIZE; phys = memblock_phys_alloc(size, PAGE_SIZE); + if (!phys) + panic("Failed to allocate CEU0 memory\n"); + memblock_free(phys, size); memblock_remove(phys, size); ceu0_dma_membase = phys; phys = memblock_phys_alloc(size, PAGE_SIZE); + if (!phys) + panic("Failed to allocate CEU1 memory\n"); + memblock_free(phys, size); memblock_remove(phys, size); ceu1_dma_membase = phys; diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c index 55bdf4a..ebe90d06 100644 --- a/arch/sh/boards/mach-kfr2r09/setup.c +++ b/arch/sh/boards/mach-kfr2r09/setup.c @@ -632,6 +632,9 @@ static void __init kfr2r09_mv_mem_reserve(void) phys_addr_t size = CEU_BUFFER_MEMORY_SIZE; phys = memblock_phys_alloc(size, PAGE_SIZE); + if (!phys) + panic("Failed to allocate CEU memory\n"); + memblock_free(phys, size); memblock_remove(phys, size); diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index ba7eee6..1adff09 100644 --- a/arch/sh/boards/mach-migor/setup.c +++ b/arch/sh/boards/mach-migor/setup.c @@ -631,6 +631,9 @@ static void __init migor_mv_mem_reserve(void) phys_addr_t size = CEU_BUFFER_MEMORY_SIZE; phys = memblock_phys_alloc(size, PAGE_SIZE); + if (!phys) + panic("Failed to allocate CEU memory\n"); + memblock_free(phys, size); memblock_remove(phys, size); diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c index 4696e10..201631a 100644 --- a/arch/sh/boards/mach-se/7724/setup.c +++ b/arch/sh/boards/mach-se/7724/setup.c @@ -966,11 +966,17 @@ static void __init ms7724se_mv_mem_reserve(void) phys_addr_t size = CEU_BUFFER_MEMORY_SIZE; phys = memblock_phys_alloc(size, PAGE_SIZE); + if (!phys) + panic("Failed to allocate CEU0 memory\n"); + memblock_free(phys, size); memblock_remove(phys, size); ceu0_dma_membase = phys; phys = memblock_phys_alloc(size, PAGE_SIZE); + if (!phys) + panic("Failed to allocate CEU1 memory\n"); + memblock_free(phys, size); memblock_remove(phys, size); ceu1_dma_membase = phys; diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c index 48dbb03..4852848 100644 --- a/arch/xtensa/mm/kasan_init.c +++ b/arch/xtensa/mm/kasan_init.c @@ -54,6 +54,9 @@ static void __init populate(void *start, void *end) phys_addr_t phys = memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE); + if (!phys) + panic("Failed to allocate page table page\n"); + set_pte(pte + j, pfn_pte(PHYS_PFN(phys), PAGE_KERNEL)); } } diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 66dfdb3..7883c74 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -374,7 +374,12 @@ phys_addr_t memblock_phys_alloc_range(phys_addr_t size, phys_addr_t align, phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid); phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid); -phys_addr_t memblock_phys_alloc(phys_addr_t size, phys_addr_t align); +static inline phys_addr_t memblock_phys_alloc(phys_addr_t size, + phys_addr_t align) +{ + return memblock_phys_alloc_range(size, align, 0, + MEMBLOCK_ALLOC_ACCESSIBLE); +} void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, diff --git a/mm/memblock.c b/mm/memblock.c index 8aabb1b..461e40a3 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -1382,11 +1382,6 @@ phys_addr_t __init memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys return alloc; } -phys_addr_t __init memblock_phys_alloc(phys_addr_t size, phys_addr_t align) -{ - return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE); -} - phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid) { phys_addr_t res = memblock_phys_alloc_nid(size, align, nid); -- 2.7.4 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc