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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

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Pull sparc updates from David Miller:

1) Debugging builds on 32-bit sparc need to handle the R_SPARC_DISP32
   relocation, not just 64-bit sparc.  From Andreas Larsson.

2) Wei Yongjun noticed that module_alloc() on sparc can return an
   error pointer, but that's not allowed.  module_alloc() should
   return only a valid pointer, or NULL.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: fix the return value of module_alloc()
  sparc32: Enable the relocation target R_SPARC_DISP32 for sparc32
This commit is contained in:
Linus Torvalds 2012-09-21 14:31:50 -07:00
commit 6219844e72
1 changed files with 5 additions and 8 deletions
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13
arch/sparc/kernel/module.c
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@ -48,9 +48,7 @@ void *module_alloc(unsigned long size)
return NULL; return NULL;
ret = module_map(size); ret = module_map(size);
if (!ret) if (ret)
ret = ERR_PTR(-ENOMEM);
else
memset(ret, 0, size); memset(ret, 0, size);
return ret; return ret;
@ -116,6 +114,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
v = sym->st_value + rel[i].r_addend; v = sym->st_value + rel[i].r_addend;
switch (ELF_R_TYPE(rel[i].r_info) & 0xff) { switch (ELF_R_TYPE(rel[i].r_info) & 0xff) {
case R_SPARC_DISP32:
v -= (Elf_Addr) location;
*loc32 = v;
break;
#ifdef CONFIG_SPARC64 #ifdef CONFIG_SPARC64
case R_SPARC_64: case R_SPARC_64:
location[0] = v >> 56; location[0] = v >> 56;
@ -128,11 +130,6 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
location[7] = v >> 0; location[7] = v >> 0;
break; break;
case R_SPARC_DISP32:
v -= (Elf_Addr) location;
*loc32 = v;
break;
case R_SPARC_WDISP19: case R_SPARC_WDISP19:
v -= (Elf_Addr) location; v -= (Elf_Addr) location;
*loc32 = (*loc32 & ~0x7ffff) | *loc32 = (*loc32 & ~0x7ffff) |