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authorAlex Shi <alex.shi@linaro.org>2018-03-20 02:25:07 +0000
committerAlex Shi <alex.shi@linaro.org>2018-03-20 02:25:07 +0000
commit031f431679b03ba7e791dd051fc13f51f806fcd7 (patch)
tree9018f8a4a6c04feaf0180cae915dfe804913ce34 /fs/ext4/symlink.c
parentf7901365aa48b20b25f8402e0fd1eea4ac6c55e7 (diff)
parent91db57e54eb9be1560454d6a370d67847b05735f (diff)
Merge remote-tracking branch 'rt-stable/v4.4-rt' into linux-linaro-lsk-v4.4-rtlsk-v4.4-18.03-rt
Diffstat (limited to 'fs/ext4/symlink.c')
-rw-r--r--fs/ext4/symlink.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index e8e7af62ac95..287c3980fa0b 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -45,7 +45,7 @@ static const char *ext4_encrypted_follow_link(struct dentry *dentry, void **cook
cpage = read_mapping_page(inode->i_mapping, 0, NULL);
if (IS_ERR(cpage))
return ERR_CAST(cpage);
- caddr = kmap(cpage);
+ caddr = page_address(cpage);
caddr[size] = 0;
}
@@ -75,16 +75,12 @@ static const char *ext4_encrypted_follow_link(struct dentry *dentry, void **cook
/* Null-terminate the name */
if (res <= plen)
paddr[res] = '\0';
- if (cpage) {
- kunmap(cpage);
+ if (cpage)
page_cache_release(cpage);
- }
return *cookie = paddr;
errout:
- if (cpage) {
- kunmap(cpage);
+ if (cpage)
page_cache_release(cpage);
- }
kfree(paddr);
return ERR_PTR(res);
}