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path: root/arch/s390/hypfs/hypfs_diag_fs.c
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Diffstat (limited to 'arch/s390/hypfs/hypfs_diag_fs.c')
-rw-r--r--arch/s390/hypfs/hypfs_diag_fs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/hypfs/hypfs_diag_fs.c b/arch/s390/hypfs/hypfs_diag_fs.c
index 1e17e288cee4..ede951dc0085 100644
--- a/arch/s390/hypfs/hypfs_diag_fs.c
+++ b/arch/s390/hypfs/hypfs_diag_fs.c
@@ -209,6 +209,8 @@ static int hypfs_create_cpu_files(struct dentry *cpus_dir, void *cpu_info)
snprintf(buffer, TMP_SIZE, "%d", cpu_info__cpu_addr(diag204_get_info_type(),
cpu_info));
cpu_dir = hypfs_mkdir(cpus_dir, buffer);
+ if (IS_ERR(cpu_dir))
+ return PTR_ERR(cpu_dir);
rc = hypfs_create_u64(cpu_dir, "mgmtime",
cpu_info__acc_time(diag204_get_info_type(), cpu_info) -
cpu_info__lp_time(diag204_get_info_type(), cpu_info));