proc: kmalloc struct pde_opener
kzalloc is too much, half of the fields will be reinitialized anyway.
If proc file doesn't have ->release hook (some still do not), clearing
is unnecessary because it will be freed immediately.
Link: http://lkml.kernel.org/r/20161029155747.GC1246@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index f623a3c..57f548e 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -321,7 +321,7 @@ static int proc_reg_open(struct inode *inode, struct file *file)
* by hand in remove_proc_entry(). For this, save opener's credentials
* for later.
*/
- pdeo = kzalloc(sizeof(struct pde_opener), GFP_KERNEL);
+ pdeo = kmalloc(sizeof(struct pde_opener), GFP_KERNEL);
if (!pdeo)
return -ENOMEM;
@@ -338,6 +338,8 @@ static int proc_reg_open(struct inode *inode, struct file *file)
if (rv == 0 && release) {
/* To know what to release. */
pdeo->file = file;
+ pdeo->closing = false;
+ pdeo->c = NULL;
/* Strictly for "too late" ->release in proc_reg_release(). */
spin_lock(&pde->pde_unload_lock);
list_add(&pdeo->lh, &pde->pde_openers);