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| author | Suraj Das <surajdazz@gmail.com> | 2017-06-25 19:07:06 +0530 |
|---|---|---|
| committer | Suraj Das <surajdazz@gmail.com> | 2017-06-25 19:15:40 +0530 |
| commit | 6e033ebda94e620277a569625745cf21c749efdb (patch) | |
| tree | 641e80dabecde9fd9108b654bf43828d78632509 /fs/sdcardfs/main.c | |
| parent | fa097959467283e96988ba548a20ccb3ec27c0c1 (diff) | |
| parent | 262196005747d5e8b4106e92adae3749e8686240 (diff) | |
Merge branch 'cm-14.1' of https://github.com/LineageOS/android_kernel_oneplus_msm8974 into n7.1HEADn7.1
Diffstat (limited to 'fs/sdcardfs/main.c')
| -rw-r--r-- | fs/sdcardfs/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/sdcardfs/main.c b/fs/sdcardfs/main.c index d46970095cb..97375a13ba1 100644 --- a/fs/sdcardfs/main.c +++ b/fs/sdcardfs/main.c @@ -223,6 +223,13 @@ static int sdcardfs_read_super(struct super_block *sb, const char *dev_name, atomic_inc(&lower_sb->s_active); sdcardfs_set_lower_super(sb, lower_sb); + sb->s_stack_depth = lower_sb->s_stack_depth + 1; + if (sb->s_stack_depth > FILESYSTEM_MAX_STACK_DEPTH) { + pr_err("sdcardfs: maximum fs stacking depth exceeded\n"); + err = -EINVAL; + goto out_sput; + } + /* inherit maxbytes from lower file system */ sb->s_maxbytes = lower_sb->s_maxbytes; |