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| author | Rusty Russell <rusty@rustcorp.com.au> | 2009-09-25 08:32:59 +0200 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-09-24 17:02:59 +0200 |
| commit | ffa9f12a41ec117207e8d953f90b9c179546c8d7 (patch) | |
| tree | c587166a485b631bc8645caec4eff6f2e9f295fe /kernel/module.c | |
| parent | module: fix memory leak when load fails after srcversion/version allocated (diff) | |
| download | linux-ffa9f12a41ec117207e8d953f90b9c179546c8d7.tar.xz linux-ffa9f12a41ec117207e8d953f90b9c179546c8d7.zip | |
module: don't call percpu_modfree on NULL pointer.
The general one handles NULL, the static obsolescent
(CONFIG_HAVE_LEGACY_PER_CPU_AREA) one in module.c doesn't; Eric's
commit 720eba31 assumed it did, and various frobbings since then kept
that assumption.
All other callers in module.c all protect it with an if; this effectively
does the same as free_init is only goto if we fail percpu_modalloc().
Reported-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Américo Wang <xiyou.wangcong@gmail.com>
Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/module.c b/kernel/module.c index c54f10d90e1c..5a29397ca4b6 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2523,8 +2523,8 @@ static noinline struct module *load_module(void __user *umod, free_unload: module_unload_free(mod); #if defined(CONFIG_MODULE_UNLOAD) && defined(CONFIG_SMP) - free_init: percpu_modfree(mod->refptr); + free_init: #endif module_free(mod, mod->module_init); free_core: |