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kernel/fail_function.c: remove meaningless null pointer check before debugfs_remove_recursive

debugfs_remove_recursive() has taken the null pointer into account. just remove the null check before debugfs_remove_recursive().

zhong jiang committed 8 years ago

Commit ea6f6501 parent de0d22e1 file · +1 −2Browse files

Showing the changes to kernel/fail_function.c (1 of 1 file). Show all

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kernel/fail_function.c+1−2
@@ -173,8 +173,7 @@ static void fei_debugfs_remove_attr(struct fei_attr *attr) · 172 unmodified lines
173 struct dentry *dir;173 struct dentry *dir;
174 174
175 dir = debugfs_lookup(attr->kp.symbol_name, fei_debugfs_dir);175 dir = debugfs_lookup(attr->kp.symbol_name, fei_debugfs_dir);
176 if (dir)176 debugfs_remove_recursive(dir);
177 debugfs_remove_recursive(dir);
178}177}
179 178
180static int fei_kprobe_handler(struct kprobe *kp, struct pt_regs *regs)179static int fei_kprobe_handler(struct kprobe *kp, struct pt_regs *regs)