The patch titled Subject: fail_function: fix wrong use of fei_attr_remove() has been added to the -mm mm-nonmm-unstable branch. Its filename is fail_function-fix-wrong-use-of-fei_attr_remove.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/fail_function-fix-wrong-use-of-fei_attr_remove.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Yang Yingliang <yangyingliang@xxxxxxxxxx> Subject: fail_function: fix wrong use of fei_attr_remove() Date: Fri, 26 Aug 2022 15:33:37 +0800 If register_kprobe() fails, the new attr is not added to the list yet, so it should call fei_attr_free() intstead. Link: https://lkml.kernel.org/r/20220826073337.2085798-3-yangyingliang@xxxxxxxxxx Fixes: 4b1a29a7f542 ("error-injection: Support fault injection framework") Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/fail_function.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/fail_function.c~fail_function-fix-wrong-use-of-fei_attr_remove +++ a/kernel/fail_function.c @@ -295,7 +295,7 @@ static ssize_t fei_write(struct file *fi ret = register_kprobe(&attr->kp); if (ret) { - fei_attr_remove(attr); + fei_attr_free(attr); goto out; } fei_debugfs_add_attr(attr); _ Patches currently in -mm which might be from yangyingliang@xxxxxxxxxx are nommu-remove-uses-of-vma-linked-list-fix.patch fail_function-switch-to-memdup_user_nul-helper.patch fail_function-refctor-code-of-checking-return-value-of-register_kprobe.patch fail_function-fix-wrong-use-of-fei_attr_remove.patch