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-rw-r--r--include/linux/kernel.h1
-rw-r--r--kernel/extable.c2
-rw-r--r--kernel/module.c12
3 files changed, 8 insertions, 7 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index e1bd084..f4fc576 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -124,6 +124,7 @@ extern int get_option(char **str, int *pint);
extern char *get_options(const char *str, int nints, int *ints);
extern unsigned long long memparse(char *ptr, char **retptr);
+extern int core_kernel_text(unsigned long addr);
extern int __kernel_text_address(unsigned long addr);
extern int kernel_text_address(unsigned long addr);
extern int session_of_pgrp(int pgrp);
diff --git a/kernel/extable.c b/kernel/extable.c
index 7501b53..7fe2628 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -40,7 +40,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
return e;
}
-static int core_kernel_text(unsigned long addr)
+int core_kernel_text(unsigned long addr)
{
if (addr >= (unsigned long)_stext &&
addr <= (unsigned long)_etext)
diff --git a/kernel/module.c b/kernel/module.c
index d24deb0..bbe0486 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -705,14 +705,14 @@ EXPORT_SYMBOL(__symbol_put);
void symbol_put_addr(void *addr)
{
- unsigned long flags;
+ struct module *modaddr;
- spin_lock_irqsave(&modlist_lock, flags);
- if (!kernel_text_address((unsigned long)addr))
- BUG();
+ if (core_kernel_text((unsigned long)addr))
+ return;
- module_put(module_text_address((unsigned long)addr));
- spin_unlock_irqrestore(&modlist_lock, flags);
+ if (!(modaddr = module_text_address((unsigned long)addr)))
+ BUG();
+ module_put(modaddr);
}
EXPORT_SYMBOL_GPL(symbol_put_addr);
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