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| author | Andrew Morton <akpm@linux-foundation.org> | 2008-02-08 04:18:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-08 09:22:24 -0800 |
| commit | 92dfc9dc7ba63134f721b6e745dbdcfc13ea341b (patch) | |
| tree | aa959d2d5ba1819651888601e4d917b01ddcc88c | |
| parent | 6d7623943c905efae327933bc5ee0b2f78e15f56 (diff) | |
| download | lwn-92dfc9dc7ba63134f721b6e745dbdcfc13ea341b.tar.gz lwn-92dfc9dc7ba63134f721b6e745dbdcfc13ea341b.zip | |
fix "modules: make module_address_lookup() safe"
Get the constness right, avoid nasty cast.
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/module.h | 4 | ||||
| -rw-r--r-- | kernel/module.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/module.h b/include/linux/module.h index ac481e2094fd..ac28e8761e84 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -449,7 +449,7 @@ static inline void __module_get(struct module *module) /* For kallsyms to ask for address resolution. namebuf should be at * least KSYM_NAME_LEN long: a pointer to namebuf is returned if * found, otherwise NULL. */ -char *module_address_lookup(unsigned long addr, +const char *module_address_lookup(unsigned long addr, unsigned long *symbolsize, unsigned long *offset, char **modname, @@ -519,7 +519,7 @@ static inline void module_put(struct module *module) #define module_name(mod) "kernel" /* For kallsyms to ask for address resolution. NULL means not found. */ -static inline char *module_address_lookup(unsigned long addr, +static inline const char *module_address_lookup(unsigned long addr, unsigned long *symbolsize, unsigned long *offset, char **modname, diff --git a/kernel/module.c b/kernel/module.c index 676c023c831b..4202da97a1da 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2253,7 +2253,7 @@ static const char *get_ksymbol(struct module *mod, /* For kallsyms to ask for address resolution. NULL means not found. Careful * not to lock to avoid deadlock on oopses, simply disable preemption. */ -char *module_address_lookup(unsigned long addr, +const char *module_address_lookup(unsigned long addr, unsigned long *size, unsigned long *offset, char **modname, @@ -2278,7 +2278,7 @@ char *module_address_lookup(unsigned long addr, ret = namebuf; } preempt_enable(); - return (char *)ret; + return ret; } int lookup_module_symbol_name(unsigned long addr, char *symname) |