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drm/rockchip: dw_hdmi: add power domain control
[firefly-linux-kernel-4.4.55.git]
/
kernel
/
cred.c
diff --git
a/kernel/cred.c
b/kernel/cred.c
index 71179a09c1d6a3240fd9c1a4ead58d89646da24e..ff8606f77d901d4ed1201d35d35feaa5066821e3 100644
(file)
--- a/
kernel/cred.c
+++ b/
kernel/cred.c
@@
-689,6
+689,8
@@
EXPORT_SYMBOL(set_security_override_from_ctx);
*/
int set_create_files_as(struct cred *new, struct inode *inode)
{
*/
int set_create_files_as(struct cred *new, struct inode *inode)
{
+ if (!uid_valid(inode->i_uid) || !gid_valid(inode->i_gid))
+ return -EINVAL;
new->fsuid = inode->i_uid;
new->fsgid = inode->i_gid;
return security_kernel_create_files_as(new, inode);
new->fsuid = inode->i_uid;
new->fsgid = inode->i_gid;
return security_kernel_create_files_as(new, inode);