On Mon, 30 Jan 2012 12:44:40 +0400, Dmitry Antipov <dmitry.anti...@linaro.org> wrote: > Use ZERO_OR_NULL_PTR allocation pointer checking where allocation > function may return ZERO_SIZE_PTR. > > Signed-off-by: Dmitry Antipov <dmitry.anti...@linaro.org> > --- > kernel/module.c | 12 ++++++------ > 1 files changed, 6 insertions(+), 6 deletions(-) > > diff --git a/kernel/module.c b/kernel/module.c > index 2c93276..5183f91 100644 > --- a/kernel/module.c > +++ b/kernel/module.c > @@ -438,7 +438,7 @@ static int percpu_modalloc(struct module *mod, > } > > mod->percpu = __alloc_reserved_percpu(size, align); > - if (!mod->percpu) { > + if (unlikely(ZERO_OR_NULL_PTR(mod->percpu))) { > printk(KERN_WARNING > "%s: Could not allocate %lu bytes percpu data\n", > mod->name, size);
printk() is marked __cold. You don't need unlikely() here. > @@ -2652,7 +2652,7 @@ static int move_module(struct module *mod, struct > load_info *info) > * after the module is initialized. > */ > kmemleak_ignore(ptr); > - if (!ptr && mod->init_size) { > + if (unlikely(ZERO_OR_NULL_PTR(ptr)) && mod->init_size) { > module_free(mod, mod->module_core); > return -ENOMEM; > } You want to just change this to: if (!ptr) { Thanks, Rusty. _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev