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fs/proc/proc_sysctl.c: remove redundant link check in proc_sys_link_fill_cache()

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proc_sys_link_fill_cache() does not need to check whether we're called
for a link - it's already done by scan().

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Danilo Krummrich <[email protected]>
Acked-by: Kees Cook <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: "Luis R . Rodriguez" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Danilo Krummrich 2018-04-10 16:31:41 -07:00 • committed by Linus Torvalds
commit 835b94e05c
1 changed files with 3 additions and 6 deletions
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9
fs/proc/proc_sysctl.c
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@ -712,12 +712,9 @@ static bool proc_sys_link_fill_cache(struct file *file,
if (IS_ERR(head))
return false;
if (S_ISLNK(table->mode)) {
/* It is not an error if we can not follow the link ignore it */
int err = sysctl_follow_link(&head, &table);
if (err)
goto out;
}
/* It is not an error if we can not follow the link ignore it */
if (sysctl_follow_link(&head, &table))
goto out;
ret = proc_sys_fill_cache(file, ctx, head, table);
out: