Messages in this thread Patch in this message | | | Date | Thu, 19 Oct 2017 11:29:43 +0200 | From | Jessica Yu <> | Subject | Re: kernel/module: Delete an error message for a failed memory allocation in add_module_usage() |
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+++ SF Markus Elfring [06/10/17 17:12 +0200]: >From: Markus Elfring <elfring@users.sourceforge.net> >Date: Fri, 6 Oct 2017 16:27:26 +0200 > >Omit an extra message for a memory allocation failure in this function. > >This issue was detected by using the Coccinelle software. > >Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> >--- > kernel/module.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > >diff --git a/kernel/module.c b/kernel/module.c >index de66ec825992..07ef44767245 100644 >--- a/kernel/module.c >+++ b/kernel/module.c >@@ -837,10 +837,8 @@ static int add_module_usage(struct module *a, struct module *b) > > pr_debug("Allocating new usage for %s.\n", a->name); > use = kmalloc(sizeof(*use), GFP_ATOMIC); >- if (!use) { >- pr_warn("%s: out of memory loading\n", a->name); >+ if (!use) > return -ENOMEM; >- }
IMO this is removing useful information. Although stack traces are generated on alloc failures, the extra print also tells us which module we were trying to load at the time the memory allocation failed.
Jessica
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