diff options
| author | Mike Rapoport <rppt@linux.ibm.com> | 2019-03-12 07:30:10 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-12 18:04:02 +0100 |
| commit | b1e1c869ffd1d8e84beb9d9ee4adc3507d8843d5 (patch) | |
| tree | 8abb1dd2458b4b5f1d18df005728dd1504514e45 /arch/sparc/mm/srmmu.c | |
| parent | ia64: add checks for the return value of memblock_alloc*() (diff) | |
| download | linux-b1e1c869ffd1d8e84beb9d9ee4adc3507d8843d5.tar.xz linux-b1e1c869ffd1d8e84beb9d9ee4adc3507d8843d5.zip | |
sparc: add checks for the return value of memblock_alloc*()
Add panic() calls if memblock_alloc*() returns NULL.
Most of the changes are simply addition of
if(!ptr)
panic();
statements after the calls to memblock_alloc*() variants.
Exceptions are pcpu_populate_pte() and kernel_map_range() that were
slightly refactored to accommodate the change.
Link: http://lkml.kernel.org/r/1548057848-15136-16-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Guo Ren <ren_guo@c-sky.com> [c-sky]
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Juergen Gross <jgross@suse.com> [Xen]
Cc: Mark Salter <msalter@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/sparc/mm/srmmu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index a400ec319564..aaebbc00d262 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -305,11 +305,17 @@ static void __init srmmu_nocache_init(void) srmmu_nocache_pool = memblock_alloc(srmmu_nocache_size, SRMMU_NOCACHE_ALIGN_MAX); + if (!srmmu_nocache_pool) + panic("%s: Failed to allocate %lu bytes align=0x%x\n", + __func__, srmmu_nocache_size, SRMMU_NOCACHE_ALIGN_MAX); memset(srmmu_nocache_pool, 0, srmmu_nocache_size); srmmu_nocache_bitmap = memblock_alloc(BITS_TO_LONGS(bitmap_bits) * sizeof(long), SMP_CACHE_BYTES); + if (!srmmu_nocache_bitmap) + panic("%s: Failed to allocate %zu bytes\n", __func__, + BITS_TO_LONGS(bitmap_bits) * sizeof(long)); bit_map_init(&srmmu_nocache_map, srmmu_nocache_bitmap, bitmap_bits); srmmu_swapper_pg_dir = __srmmu_get_nocache(SRMMU_PGD_TABLE_SIZE, SRMMU_PGD_TABLE_SIZE); @@ -468,6 +474,8 @@ static void __init sparc_context_init(int numctx) size = numctx * sizeof(struct ctx_list); ctx_list_pool = memblock_alloc(size, SMP_CACHE_BYTES); + if (!ctx_list_pool) + panic("%s: Failed to allocate %lu bytes\n", __func__, size); for (ctx = 0; ctx < numctx; ctx++) { struct ctx_list *clist; |