Piteball/android_kernel_samsung_msm8976
1
1
Fork 0
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git synced 2024-09-21 03:43:03 +00:00
Code Issues Projects Releases Wiki Activity

ANDROID: sdcardfs: Check for NULL in revalidate

Browse source 
If the inode is in the process of being evicted,
the top value may be NULL.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 38502532
Change-Id: I0b9d04aab621e0398d44d1c5dc53293106aa5f89
This commit is contained in:
Daniel Rosenberg 2017-05-22 13:23:56 -07:00 committed by LuK1337
parent ffca7ec8e3
commit 240b1685e2
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
fs/sdcardfs/dentry.c
View file

@ -109,14 +109,16 @@ static int sdcardfs_d_revalidate(struct dentry *dentry, unsigned int flags)
goto out;
/* If our top's inode is gone, we may be out of date */
inode = dentry->d_inode;
inode = igrab(dentry->d_inode);
if (inode) {
data = top_data_get(SDCARDFS_I(inode));
if (data->abandoned) {
if (!data || data->abandoned) {
d_drop(dentry);
err = 0;
}
data_put(data);
if (data)
data_put(data);
iput(inode);
}
out: