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authorIngo Molnar <mingo@elte.hu>2009-08-31 17:54:18 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-31 18:05:25 +0200
commitbbe69aa57a7374b51242b95a54eefcf0d0393b7e (patch)
treec45e48d11cc9cb81a57c8c27f7243863b117cec8 /kernel/module.c
parenta417887637e862b434b293404f2a31ad1f282a58 (diff)
parent326ba5010a5429a5a528b268b36a5900d4ab0eba (diff)
Merge commit 'v2.6.31-rc8' into core/locking
Merge reason: we were on -rc4, move to -rc8 before applying a new batch of locking infrastructure changes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/module.c')
-rw-r--r--kernel/module.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 0a049837008..eccb561dd8a 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -909,16 +909,18 @@ void __symbol_put(const char *symbol)
}
EXPORT_SYMBOL(__symbol_put);
+/* Note this assumes addr is a function, which it currently always is. */
void symbol_put_addr(void *addr)
{
struct module *modaddr;
+ unsigned long a = (unsigned long)dereference_function_descriptor(addr);
- if (core_kernel_text((unsigned long)addr))
+ if (core_kernel_text(a))
return;
/* module_text_address is safe here: we're supposed to have reference
* to module from symbol_get, so it can't go away. */
- modaddr = __module_text_address((unsigned long)addr);
+ modaddr = __module_text_address(a);
BUG_ON(!modaddr);
module_put(modaddr);
}
@@ -1068,7 +1070,8 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs,
{
const unsigned long *crc;
- if (!find_symbol("module_layout", NULL, &crc, true, false))
+ if (!find_symbol(MODULE_SYMBOL_PREFIX "module_layout", NULL,
+ &crc, true, false))
BUG();
return check_version(sechdrs, versindex, "module_layout", mod, crc);
}
@@ -2352,7 +2355,8 @@ static noinline struct module *load_module(void __user *umod,
if (err < 0)
goto unlink;
add_sect_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
- add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
+ if (mod->sect_attrs)
+ add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
/* Get rid of temporary copy */
vfree(hdr);