procfs: report EISDIR when reading sysctl dirs in proc
On reading sysctl dirs we should return -EISDIR instead of -EINVAL.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 1a77dbe..dacd840 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -370,6 +370,7 @@
};
static const struct file_operations proc_sys_dir_file_operations = {
+ .read = generic_read_dir,
.readdir = proc_sys_readdir,
.llseek = generic_file_llseek,
};